38693872 has 40 divisors (see below), whose sum is σ = 86217696. Its totient is φ = 16478976.

The previous prime is 38693867. The next prime is 38693881. The reversal of 38693872 is 27839683.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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, 18378 + ... + 20374.

Almost surely, 2^38693872 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 38693872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43108848).

38693872 is an abundant number, since it is smaller than the sum of its proper divisors (47523824).

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

38693872 is a wasteful number, since it uses less digits than its factorization.

38693872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185 (or 2179 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 38693872 is about 6220.4398558301. The cubic root of 38693872 is about 338.2315092862.

The spelling of 38693872 in words is "thirty-eight million, six hundred ninety-three thousand, eight hundred seventy-two".