38311912 has 8 divisors (see below), whose sum is σ = 71834850. Its totient is φ = 19155952.

The previous prime is 38311901. The next prime is 38311927. The reversal of 38311912 is 21911383.

It can be written as a sum of positive squares in only one way, i.e., 24068836 + 14243076 = 4906^2 + 3774^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2394487 + ... + 2394502.

Almost surely, 2^38311912 is an apocalyptic number.

It is an amenable number.

38311912 is a deficient number, since it is larger than the sum of its proper divisors (33522938).

38311912 is a wasteful number, since it uses less digits than its factorization.

38311912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4788995 (or 4788991 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 38311912 is about 6189.6617031951. The cubic root of 38311912 is about 337.1148953568.

The spelling of 38311912 in words is "thirty-eight million, three hundred eleven thousand, nine hundred twelve".