72265872 has 40 divisors (see below), whose sum is σ = 213357376. Its totient is φ = 20647296.

The previous prime is 72265841. The next prime is 72265909. The reversal of 72265872 is 27856227.

It is a self number, because there is not a number n which added to its sum of digits gives 72265872.

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, 107203 + ... + 107874.

Almost surely, 2^72265872 is an apocalyptic number.

It is an amenable number.

72265872 is an abundant number, since it is smaller than the sum of its proper divisors (141091504).

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

72265872 is a wasteful number, since it uses less digits than its factorization.

72265872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215095 (or 215089 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 72265872 is about 8500.9335957882. The cubic root of 72265872 is about 416.5282060116.

It can be divided in two parts, 72265 and 872, that added together give a palindrome (73137).

The spelling of 72265872 in words is "seventy-two million, two hundred sixty-five thousand, eight hundred seventy-two".