38268139 has 32 divisors (see below), whose sum is σ = 51649920. Its totient is φ = 27482112.

The previous prime is 38268121. The next prime is 38268161. The reversal of 38268139 is 93186283.

It is not a de Polignac number, because 38268139 - 2¹¹ = 38266091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38268169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44437 + ... + 45289.

It is an arithmetic number, because the mean of its divisors is an integer number (1614060).

Almost surely, 2^38268139 is an apocalyptic number.

38268139 is a deficient number, since it is larger than the sum of its proper divisors (13381781).

38268139 is a wasteful number, since it uses less digits than its factorization.

38268139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919.

The product of its digits is 62208, while the sum is 40.

The square root of 38268139 is about 6186.1247158459. The cubic root of 38268139 is about 336.9864570278.

The spelling of 38268139 in words is "thirty-eight million, two hundred sixty-eight thousand, one hundred thirty-nine".