72564244 has 24 divisors (see below), whose sum is σ = 129604608. Its totient is φ = 35542080.

The previous prime is 72564209. The next prime is 72564251. The reversal of 72564244 is 44246527.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 41304 + ... + 43024.

It is an arithmetic number, because the mean of its divisors is an integer number (5400192).

Almost surely, 2^72564244 is an apocalyptic number.

It is an amenable number.

72564244 is a deficient number, since it is larger than the sum of its proper divisors (57040364).

72564244 is a wasteful number, since it uses less digits than its factorization.

72564244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935 (or 1933 counting only the distinct ones).

The product of its digits is 53760, while the sum is 34.

The square root of 72564244 is about 8518.4648851774. The cubic root of 72564244 is about 417.1006740311.

The spelling of 72564244 in words is "seventy-two million, five hundred sixty-four thousand, two hundred forty-four".