72102372 has 24 divisors (see below), whose sum is σ = 178135776. Its totient is φ = 22620288.

The previous prime is 72102361. The next prime is 72102383. The reversal of 72102372 is 27320127.

It is an interprime number because it is at equal distance from previous prime (72102361) and next prime (72102383).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176518 + ... + 176925.

It is an arithmetic number, because the mean of its divisors is an integer number (7422324).

Almost surely, 2^72102372 is an apocalyptic number.

It is an amenable number.

72102372 is an abundant number, since it is smaller than the sum of its proper divisors (106033404).

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

72102372 is a wasteful number, since it uses less digits than its factorization.

72102372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353467 (or 353465 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 72102372 is about 8491.3115594707. The cubic root of 72102372 is about 416.2138400714.

Adding to 72102372 its reverse (27320127), we get a palindrome (99422499).

The spelling of 72102372 in words is "seventy-two million, one hundred two thousand, three hundred seventy-two".