72580236 has 24 divisors (see below), whose sum is σ = 173932080. Its totient is φ = 23539392.

The previous prime is 72580213. The next prime is 72580279. The reversal of 72580236 is 63208527.

It is a junction number, because it is equal to n+sod(n) for n = 72580197 and 72580206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81291 + ... + 82178.

It is an arithmetic number, because the mean of its divisors is an integer number (7247170).

Almost surely, 2^72580236 is an apocalyptic number.

It is an amenable number.

72580236 is an abundant number, since it is smaller than the sum of its proper divisors (101351844).

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

72580236 is a wasteful number, since it uses less digits than its factorization.

72580236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163513 (or 163511 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 72580236 is about 8519.4035002458. The cubic root of 72580236 is about 417.1313125552.

The spelling of 72580236 in words is "seventy-two million, five hundred eighty thousand, two hundred thirty-six".