722390552 has 16 divisors (see below), whose sum is σ = 1458673440. Its totient is φ = 333410976.

The previous prime is 722390531. The next prime is 722390561. The reversal of 722390552 is 255093227.

It is a congruent number.

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, 3472928 + ... + 3473135.

It is an arithmetic number, because the mean of its divisors is an integer number (91167090).

Almost surely, 2^722390552 is an apocalyptic number.

It is an amenable number.

722390552 is an abundant number, since it is smaller than the sum of its proper divisors (736282888).

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

722390552 is a wasteful number, since it uses less digits than its factorization.

722390552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6946082 (or 6946078 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 722390552 is about 26877.3241227619. The cubic root of 722390552 is about 897.2718008293.

The spelling of 722390552 in words is "seven hundred twenty-two million, three hundred ninety thousand, five hundred fifty-two".