722412736 has 28 divisors (see below), whose sum is σ = 1482973920. Its totient is φ = 348750080.

The previous prime is 722412689. The next prime is 722412749. The reversal of 722412736 is 637214227.

It is a super-2 number, since 2×722412736² = 1043760322270011392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192760 + ... + 196471.

Almost surely, 2^722412736 is an apocalyptic number.

It is an amenable number.

722412736 is an abundant number, since it is smaller than the sum of its proper divisors (760561184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722412736 is a wasteful number, since it uses less digits than its factorization.

722412736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389272 (or 389262 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 722412736 is about 26877.7368094860. The cubic root of 722412736 is about 897.2809855535.

The spelling of 722412736 in words is "seven hundred twenty-two million, four hundred twelve thousand, seven hundred thirty-six".