38438172 has 24 divisors (see below), whose sum is σ = 99654800. Its totient is φ = 12812688.

The previous prime is 38438167. The next prime is 38438203. The reversal of 38438172 is 27183483.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 177847 + ... + 178062.

Almost surely, 2^38438172 is an apocalyptic number.

It is an amenable number.

38438172 is an abundant number, since it is smaller than the sum of its proper divisors (61216628).

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

38438172 is a wasteful number, since it uses less digits than its factorization.

38438172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355922 (or 355914 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 38438172 is about 6199.8525788925. The cubic root of 38438172 is about 337.4848190703.

The spelling of 38438172 in words is "thirty-eight million, four hundred thirty-eight thousand, one hundred seventy-two".