722565380 has 24 divisors (see below), whose sum is σ = 1518081432. Its totient is φ = 288893952.

The previous prime is 722565359. The next prime is 722565397. The reversal of 722565380 is 83565227.

It can be written as a sum of positive squares in 4 ways, for example, as 329495104 + 393070276 = 18152^2 + 19826^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44894 + ... + 58826.

It is an arithmetic number, because the mean of its divisors is an integer number (63253393).

Almost surely, 2^722565380 is an apocalyptic number.

It is an amenable number.

722565380 is an abundant number, since it is smaller than the sum of its proper divisors (795516052).

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

722565380 is a wasteful number, since it uses less digits than its factorization.

722565380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16535 (or 16533 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 722565380 is about 26880.5762587040. The cubic root of 722565380 is about 897.3441788437.

The spelling of 722565380 in words is "seven hundred twenty-two million, five hundred sixty-five thousand, three hundred eighty".