38128975 has 12 divisors (see below), whose sum is σ = 48434400. Its totient is φ = 29758400.

The previous prime is 38128973. The next prime is 38128999. The reversal of 38128975 is 57982183.

It is not a de Polignac number, because 38128975 - 2¹ = 38128973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38128973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17575 + ... + 19624.

It is an arithmetic number, because the mean of its divisors is an integer number (4036200).

Almost surely, 2^38128975 is an apocalyptic number.

38128975 is a deficient number, since it is larger than the sum of its proper divisors (10305425).

38128975 is a wasteful number, since it uses less digits than its factorization.

38128975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37250 (or 37245 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 38128975 is about 6174.8663953158. The cubic root of 38128975 is about 336.5774714968.

The spelling of 38128975 in words is "thirty-eight million, one hundred twenty-eight thousand, nine hundred seventy-five".