722720924 has 48 divisors (see below), whose sum is σ = 1313457600. Its totient is φ = 347811840.

The previous prime is 722720891. The next prime is 722720941. The reversal of 722720924 is 429027227.

722720924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3744572 + ... + 3744764.

It is an arithmetic number, because the mean of its divisors is an integer number (27363700).

Almost surely, 2^722720924 is an apocalyptic number.

It is an amenable number.

722720924 is a deficient number, since it is larger than the sum of its proper divisors (590736676).

722720924 is a wasteful number, since it uses less digits than its factorization.

722720924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 722720924 is about 26883.4693445619. The cubic root of 722720924 is about 897.4085635544.

The spelling of 722720924 in words is "seven hundred twenty-two million, seven hundred twenty thousand, nine hundred twenty-four".