72312038 has 16 divisors (see below), whose sum is σ = 111029184. Its totient is φ = 35305920.

The previous prime is 72312029. The next prime is 72312041. The reversal of 72312038 is 83021327.

It is a junction number, because it is equal to n+sod(n) for n = 72311998 and 72312016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76706 + ... + 77642.

It is an arithmetic number, because the mean of its divisors is an integer number (6939324).

Almost surely, 2^72312038 is an apocalyptic number.

72312038 is a deficient number, since it is larger than the sum of its proper divisors (38717146).

72312038 is a wasteful number, since it uses less digits than its factorization.

72312038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 72312038 is about 8503.6485110804. The cubic root of 72312038 is about 416.6168847903.

The spelling of 72312038 in words is "seventy-two million, three hundred twelve thousand, thirty-eight".