72032372 has 6 divisors (see below), whose sum is σ = 126056658. Its totient is φ = 36016184.

The previous prime is 72032369. The next prime is 72032419. The reversal of 72032372 is 27323027.

It can be written as a sum of positive squares in only one way, i.e., 68624656 + 3407716 = 8284^2 + 1846^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9004043 + ... + 9004050.

It is an arithmetic number, because the mean of its divisors is an integer number (21009443).

Almost surely, 2^72032372 is an apocalyptic number.

It is an amenable number.

72032372 is a deficient number, since it is larger than the sum of its proper divisors (54024286).

72032372 is a wasteful number, since it uses less digits than its factorization.

72032372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18008097 (or 18008095 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 72032372 is about 8487.1886982675. The cubic root of 72032372 is about 416.0791038551.

Adding to 72032372 its reverse (27323027), we get a palindrome (99355399).

The spelling of 72032372 in words is "seventy-two million, thirty-two thousand, three hundred seventy-two".