38013992 has 8 divisors (see below), whose sum is σ = 71276250. Its totient is φ = 19006992.

The previous prime is 38013959. The next prime is 38014013. The reversal of 38013992 is 29931083.

It can be written as a sum of positive squares in only one way, i.e., 22600516 + 15413476 = 4754^2 + 3926^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2375867 + ... + 2375882.

Almost surely, 2^38013992 is an apocalyptic number.

It is an amenable number.

38013992 is a deficient number, since it is larger than the sum of its proper divisors (33262258).

38013992 is a wasteful number, since it uses less digits than its factorization.

38013992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4751755 (or 4751751 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 38013992 is about 6165.5487995798. The cubic root of 38013992 is about 336.2387994408.

The spelling of 38013992 in words is "thirty-eight million, thirteen thousand, nine hundred ninety-two".