38400944 has 20 divisors (see below), whose sum is σ = 74880624. Its totient is φ = 19076928.

The previous prime is 38400941. The next prime is 38400997. The reversal of 38400944 is 44900483.

38400944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×38400944² = 2949265000182272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38400944.

It is not an unprimeable number, because it can be changed into a prime (38400941) 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 3 ways as a sum of consecutive naturals, for example, 5132 + ... + 10155.

Almost surely, 2^38400944 is an apocalyptic number.

It is an amenable number.

38400944 is a deficient number, since it is larger than the sum of its proper divisors (36479680).

38400944 is a wasteful number, since it uses less digits than its factorization.

38400944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15452 (or 15446 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 38400944 is about 6196.8495221362. The cubic root of 38400944 is about 337.3758306829.

The spelling of 38400944 in words is "thirty-eight million, four hundred thousand, nine hundred forty-four".