72544806 has 24 divisors (see below), whose sum is σ = 164015280. Its totient is φ = 23130096.

The previous prime is 72544789. The next prime is 72544811. The reversal of 72544806 is 60844527.

It is a hoax number, since the sum of its digits (36) 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 11 ways as a sum of consecutive naturals, for example, 87201 + ... + 88028.

It is an arithmetic number, because the mean of its divisors is an integer number (6833970).

Almost surely, 2^72544806 is an apocalyptic number.

72544806 is an abundant number, since it is smaller than the sum of its proper divisors (91470474).

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

72544806 is a wasteful number, since it uses less digits than its factorization.

72544806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175260 (or 175257 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 72544806 is about 8517.3238754905. The cubic root of 72544806 is about 417.0634273721.

The spelling of 72544806 in words is "seventy-two million, five hundred forty-four thousand, eight hundred six".