72132372 has 72 divisors (see below), whose sum is σ = 198947840. Its totient is φ = 21902400.

The previous prime is 72132349. The next prime is 72132391. The reversal of 72132372 is 27323127.

It is a happy number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 35997 + ... + 37947.

Almost surely, 2^72132372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72132372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99473920).

72132372 is an abundant number, since it is smaller than the sum of its proper divisors (126815468).

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

72132372 is a wasteful number, since it uses less digits than its factorization.

72132372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053 (or 2048 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 72132372 is about 8493.0778873151. The cubic root of 72132372 is about 416.2715574691.

Adding to 72132372 its reverse (27323127), we get a palindrome (99455499).

The spelling of 72132372 in words is "seventy-two million, one hundred thirty-two thousand, three hundred seventy-two".