38213904 has 40 divisors (see below), whose sum is σ = 100118592. Its totient is φ = 12557440.

The previous prime is 38213899. The next prime is 38213953. The reversal of 38213904 is 40931283.

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, 2199 + ... + 9014.

Almost surely, 2^38213904 is an apocalyptic number.

It is an amenable number.

38213904 is an abundant number, since it is smaller than the sum of its proper divisors (61904688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38213904 is a wasteful number, since it uses less digits than its factorization.

38213904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11295 (or 11289 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 38213904 is about 6181.7395609974. The cubic root of 38213904 is about 336.8271852698.

The spelling of 38213904 in words is "thirty-eight million, two hundred thirteen thousand, nine hundred four".