72604580 has 12 divisors (see below), whose sum is σ = 152469660. Its totient is φ = 29041824.

The previous prime is 72604577. The next prime is 72604589. The reversal of 72604580 is 8540627.

It can be written as a sum of positive squares in 2 ways, for example, as 51609856 + 20994724 = 7184^2 + 4582^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (72604589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1815095 + ... + 1815134.

It is an arithmetic number, because the mean of its divisors is an integer number (12705805).

Almost surely, 2^72604580 is an apocalyptic number.

It is an amenable number.

72604580 is an abundant number, since it is smaller than the sum of its proper divisors (79865080).

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

72604580 is a wasteful number, since it uses less digits than its factorization.

72604580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630238 (or 3630236 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 72604580 is about 8520.8321189893. The cubic root of 72604580 is about 417.1779437510.

The spelling of 72604580 in words is "seventy-two million, six hundred four thousand, five hundred eighty".