Brazil is the second hardest-hit country with 3,057,470 cases and 101,752 deaths.
Meanwhile, India has confirmed more than 2.2 million cases.
Countries with more than 400,000 cases also include Russia, South Africa, Mexico and Peru. Other countries with over 30,000 deaths are Mexico, Britain, India, Italy and France, according to the center.
The world has seen soaring new infections over the past months. Global cases topped 10 million on June 28 and doubled just 43 days later.