38966157 has 16 divisors (see below), whose sum is σ = 57833280. Its totient is φ = 25929936.

The previous prime is 38966141. The next prime is 38966167. The reversal of 38966157 is 75166983.

It is a happy number.

It is not a de Polignac number, because 38966157 - 2⁴ = 38966141 is a prime.

It is a super-2 number, since 2×38966157² = 3036722782697298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38966107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19938 + ... + 21804.

It is an arithmetic number, because the mean of its divisors is an integer number (3614580).

Almost surely, 2^38966157 is an apocalyptic number.

It is an amenable number.

38966157 is a deficient number, since it is larger than the sum of its proper divisors (18867123).

38966157 is a wasteful number, since it uses less digits than its factorization.

38966157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649 (or 2643 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 38966157 is about 6242.2878017599. The cubic root of 38966157 is about 339.0230229489.

The spelling of 38966157 in words is "thirty-eight million, nine hundred sixty-six thousand, one hundred fifty-seven".