38538172 has 12 divisors (see below), whose sum is σ = 67832856. Its totient is φ = 19157360.

The previous prime is 38538169. The next prime is 38538173. The reversal of 38538172 is 27183583.

It is a super-2 number, since 2×38538172² = 2970381402203168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38538173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27154 + ... + 28537.

It is an arithmetic number, because the mean of its divisors is an integer number (5652738).

Almost surely, 2^38538172 is an apocalyptic number.

It is an amenable number.

38538172 is a deficient number, since it is larger than the sum of its proper divisors (29294684).

38538172 is a wasteful number, since it uses less digits than its factorization.

38538172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55868 (or 55866 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 38538172 is about 6207.9120483460. The cubic root of 38538172 is about 337.7772302847. Note that the first 3 decimals are identical.

The spelling of 38538172 in words is "thirty-eight million, five hundred thirty-eight thousand, one hundred seventy-two".