72495232 has 32 divisors (see below), whose sum is σ = 144991980. Its totient is φ = 36105216.

The previous prime is 72495229. The next prime is 72495233. The reversal of 72495232 is 23259427.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63107136 + 9388096 = 7944^2 + 3064^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (72495233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36538 + ... + 38470.

Almost surely, 2^72495232 is an apocalyptic number.

It is an amenable number.

72495232 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

72495232 is a wasteful number, since it uses less digits than its factorization.

72495232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240 (or 2228 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 72495232 is about 8514.4131917590. The cubic root of 72495232 is about 416.9684046551.

It can be divided in two parts, 72495 and 232, that added together give a palindrome (72727).

The spelling of 72495232 in words is "seventy-two million, four hundred ninety-five thousand, two hundred thirty-two".