72088236 has 36 divisors (see below), whose sum is σ = 198789864. Its totient is φ = 21844800.

The previous prime is 72088213. The next prime is 72088241. The reversal of 72088236 is 63288027.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 72088236.

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, 90625 + ... + 91416.

Almost surely, 2^72088236 is an apocalyptic number.

It is an amenable number.

72088236 is an abundant number, since it is smaller than the sum of its proper divisors (126701628).

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

72088236 is a wasteful number, since it uses less digits than its factorization.

72088236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182062 (or 182057 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 72088236 is about 8490.4791384232. The cubic root of 72088236 is about 416.1866380843.

The spelling of 72088236 in words is "seventy-two million, eighty-eight thousand, two hundred thirty-six".