38990908 has 24 divisors (see below), whose sum is σ = 74766384. Its totient is φ = 17644800.

The previous prime is 38990899. The next prime is 38990909. The reversal of 38990908 is 80909983.

38990908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38990909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8766 + ... + 12442.

It is an arithmetic number, because the mean of its divisors is an integer number (3115266).

Almost surely, 2^38990908 is an apocalyptic number.

It is an amenable number.

38990908 is a deficient number, since it is larger than the sum of its proper divisors (35775476).

38990908 is a wasteful number, since it uses less digits than its factorization.

38990908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3933 (or 3931 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 38990908 is about 6244.2700133803. The cubic root of 38990908 is about 339.0947893521.

The spelling of 38990908 in words is "thirty-eight million, nine hundred ninety thousand, nine hundred eight".