38139976 has 32 divisors (see below), whose sum is σ = 86538240. Its totient is φ = 15383808.

The previous prime is 38139949. The next prime is 38139979. The reversal of 38139976 is 67993183.

It is not an unprimeable number, because it can be changed into a prime (38139979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19080 + ... + 20983.

It is an arithmetic number, because the mean of its divisors is an integer number (2704320).

Almost surely, 2^38139976 is an apocalyptic number.

It is an amenable number.

38139976 is an abundant number, since it is smaller than the sum of its proper divisors (48398264).

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

38139976 is a wasteful number, since it uses less digits than its factorization.

38139976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40093 (or 40089 counting only the distinct ones).

The product of its digits is 244944, while the sum is 46.

The square root of 38139976 is about 6175.7571195765. The cubic root of 38139976 is about 336.6098382443.

The spelling of 38139976 in words is "thirty-eight million, one hundred thirty-nine thousand, nine hundred seventy-six".