His big smile totally makes cents.

The California resident who became an overnight millionaire after winning the $2 billion Powerball prize flashed a wide grin as he was spotted dipping into his large fortune on Wednesday.

Edwin Castro was photographed taking out a fat envelope of cash from a Chase bank Wednesday with his newly hired security team in tow.

The lucky 30-year-old, who was dressed down in a quarter-zip Under Armour shirt, joggers and flip-flops while running his bank errand, added a whopping $997.6 million to his account when he won the largest lottery prize in US history last year.

Castro came forward in February to claim his winnings and opted for a one-time, lump-sum payment.

He has since invested in real estate — buying two multimillion-dollar homes in California in just one month.

Castro purchased both a $25.5 million Hollywood Hills estate and a $4 million mansion with views of the San Gabriel Mountains in March.

The Hollywood Hills residence has five bedrooms, seven bathrooms and a total 13,500 square feet of living space.

The home includes luxe features like a game room, wine cellar, movie theater, bar, infinity pool, spa and a fitness studio with hot and cold plunge pools.

The less expensive home is located in Castro’s hometown of Altadena, just a short distance from the gas station where he purchased his winning Powerball ticket.

The Japanese-style pad was built in 1953 and has five bedrooms and four bathrooms.

It also includes a saltwater swimming pool, movie theater, outdoor pond and a garage-carport combo that can fit more than a dozen vehicles.

Castro has purchased at least one lavish new whip to match his income boost.

He was spotted driving a $250,000 vintage Porsche 911 with a friend around town.

The properties are a massive upgrade from the lotto winner’s former — and much smaller — one-bedroom home in Altadena, according to images of the humble abode.

Castro’s new lifestyle also includes 24/7 security.

He has a rotation of three guards who protect him and his home around the clock.

He has not done any media interviews since his life-changing win but released a statement that Powerball officials read when they announced the winner.

“As much as I am shocked and ecstatic to have won the Powerball drawing, the real winner is the California public school system,” he said in the statement.

“The mission of the California Lottery, which is to provide supplemental funding for California public education — both public schools and colleges — makes this a huge win for the state.

Castro said he was born and raised in California and attended public schools in the state.

“As someone who received the rewards of being educated in the California public education system, it’s gratifying to hear that, as a result of my win, the California school system greatly benefits as well,” he said. (New York Post)