38938185 has 64 divisors (see below), whose sum is σ = 81365760. Its totient is φ = 17418240.

The previous prime is 38938181. The next prime is 38938187. The reversal of 38938185 is 58183983.

It is not a de Polignac number, because 38938185 - 2² = 38938181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38938185.

It is not an unprimeable number, because it can be changed into a prime (38938181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18297 + ... + 20313.

It is an arithmetic number, because the mean of its divisors is an integer number (1271340).

Almost surely, 2^38938185 is an apocalyptic number.

It is an amenable number.

38938185 is an abundant number, since it is smaller than the sum of its proper divisors (42427575).

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

38938185 is a wasteful number, since it uses less digits than its factorization.

38938185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055 (or 2049 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 38938185 is about 6240.0468748239. The cubic root of 38938185 is about 338.9418805524.

The spelling of 38938185 in words is "thirty-eight million, nine hundred thirty-eight thousand, one hundred eighty-five".