722464864 has 36 divisors (see below), whose sum is σ = 1563420852. Its totient is φ = 328391360.

The previous prime is 722464837. The next prime is 722464877. The reversal of 722464864 is 468464227.

It is a self number, because there is not a number n which added to its sum of digits gives 722464864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89422 + ... + 97165.

It is an arithmetic number, because the mean of its divisors is an integer number (43428357).

Almost surely, 2^722464864 is an apocalyptic number.

It is an amenable number.

722464864 is an abundant number, since it is smaller than the sum of its proper divisors (840955988).

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

722464864 is a wasteful number, since it uses less digits than its factorization.

722464864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186619 (or 186600 counting only the distinct ones).

The product of its digits is 516096, while the sum is 43.

The square root of 722464864 is about 26878.7065164974. The cubic root of 722464864 is about 897.3025670936.

The spelling of 722464864 in words is "seven hundred twenty-two million, four hundred sixty-four thousand, eight hundred sixty-four".