38773928 has 32 divisors (see below), whose sum is σ = 77257800. Its totient is φ = 18208512.

The previous prime is 38773909. The next prime is 38773937. The reversal of 38773928 is 82937783.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29398084 + 9375844 = 5422^2 + 3062^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6326 + ... + 10842.

Almost surely, 2^38773928 is an apocalyptic number.

It is an amenable number.

38773928 is a deficient number, since it is larger than the sum of its proper divisors (38483872).

38773928 is a wasteful number, since it uses less digits than its factorization.

38773928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589 (or 4585 counting only the distinct ones).

The product of its digits is 508032, while the sum is 47.

The square root of 38773928 is about 6226.8714455977. The cubic root of 38773928 is about 338.4646108748.

The spelling of 38773928 in words is "thirty-eight million, seven hundred seventy-three thousand, nine hundred twenty-eight".