72424038 has 16 divisors (see below), whose sum is σ = 146255616. Its totient is φ = 23906760.

The previous prime is 72424021. The next prime is 72424043. The reversal of 72424038 is 83042427.

It is a junction number, because it is equal to n+sod(n) for n = 72423996 and 72424014.

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 7 ways as a sum of consecutive naturals, for example, 57978 + ... + 59213.

It is an arithmetic number, because the mean of its divisors is an integer number (9140976).

Almost surely, 2^72424038 is an apocalyptic number.

72424038 is an abundant number, since it is smaller than the sum of its proper divisors (73831578).

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

72424038 is a wasteful number, since it uses less digits than its factorization.

72424038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117299.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 72424038 is about 8510.2313717078. The cubic root of 72424038 is about 416.8318652318.

The spelling of 72424038 in words is "seventy-two million, four hundred twenty-four thousand, thirty-eight".