72250864 has 20 divisors (see below), whose sum is σ = 159984304. Its totient is φ = 30964608.

The previous prime is 72250853. The next prime is 72250883. The reversal of 72250864 is 46805227.

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, 322437 + ... + 322660.

Almost surely, 2^72250864 is an apocalyptic number.

It is an amenable number.

72250864 is an abundant number, since it is smaller than the sum of its proper divisors (87733440).

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

72250864 is a wasteful number, since it uses less digits than its factorization.

72250864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645112 (or 645106 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 72250864 is about 8500.0508233775. The cubic root of 72250864 is about 416.4993694947.

The spelling of 72250864 in words is "seventy-two million, two hundred fifty thousand, eight hundred sixty-four".