38866172 has 24 divisors (see below), whose sum is σ = 72954000. Its totient is φ = 18061056.

The previous prime is 38866171. The next prime is 38866187. The reversal of 38866172 is 27166883.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38866171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797 + ... + 8852.

It is an arithmetic number, because the mean of its divisors is an integer number (3039750).

Almost surely, 2^38866172 is an apocalyptic number.

It is an amenable number.

38866172 is a deficient number, since it is larger than the sum of its proper divisors (34087828).

38866172 is a wasteful number, since it uses less digits than its factorization.

38866172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9725 (or 9723 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 38866172 is about 6234.2739753720. The cubic root of 38866172 is about 338.7328031466.

The spelling of 38866172 in words is "thirty-eight million, eight hundred sixty-six thousand, one hundred seventy-two".