72910332 has 36 divisors (see below), whose sum is σ = 201056856. Its totient is φ = 22093920.

The previous prime is 72910307. The next prime is 72910333. The reversal of 72910332 is 23301927.

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

It is a junction number, because it is equal to n+sod(n) for n = 72910296 and 72910305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72910333) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 91663 + ... + 92454.

Almost surely, 2^72910332 is an apocalyptic number.

It is an amenable number.

72910332 is an abundant number, since it is smaller than the sum of its proper divisors (128146524).

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

72910332 is a wasteful number, since it uses less digits than its factorization.

72910332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184138 (or 184133 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 72910332 is about 8538.7547101436. The cubic root of 72910332 is about 417.7627294409.

The spelling of 72910332 in words is "seventy-two million, nine hundred ten thousand, three hundred thirty-two".