72372432 has 80 divisors (see below), whose sum is σ = 205933248. Its totient is φ = 21719040.

The previous prime is 72372389. The next prime is 72372449. The reversal of 72372432 is 23427327.

It is a self number, because there is not a number n which added to its sum of digits gives 72372432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59058 + ... + 60270.

Almost surely, 2^72372432 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 72372432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102966624).

72372432 is an abundant number, since it is smaller than the sum of its proper divisors (133560816).

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

72372432 is a wasteful number, since it uses less digits than its factorization.

72372432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1342 counting only the distinct ones).

The product of its digits is 14112, while the sum is 30.

The square root of 72372432 is about 8507.1988339288. The cubic root of 72372432 is about 416.7328367089.

Adding to 72372432 its reverse (23427327), we get a palindrome (95799759).

It can be divided in two parts, 7237 and 2432, that added together give a palindrome (9669).

The spelling of 72372432 in words is "seventy-two million, three hundred seventy-two thousand, four hundred thirty-two".