7221940324 has 9 divisors (see below), whose sum is σ = 12638693011. Its totient is φ = 3610885180.

The previous prime is 7221940309. The next prime is 7221940331. The reversal of 7221940324 is 4230491227.

The square root of 7221940324 is 84982.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7221940324.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 148719 + ... + 191209.

Almost surely, 2^7221940324 is an apocalyptic number.

7221940324 is the 84982-nd square number.

It is an amenable number.

7221940324 is a deficient number, since it is larger than the sum of its proper divisors (5416752687).

7221940324 is an frugal number, since it uses more digits than its factorization.

7221940324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84986 (or 42493 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The cubic root of 7221940324 is about 1932.9381830412.

The spelling of 7221940324 in words is "seven billion, two hundred twenty-one million, nine hundred forty thousand, three hundred twenty-four".