38972404 has 24 divisors (see below), whose sum is σ = 70963200. Its totient is φ = 18705120.

The previous prime is 38972393. The next prime is 38972411. The reversal of 38972404 is 40427983.

It is a happy number.

It is a congruent number.

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, 21277 + ... + 23035.

It is an arithmetic number, because the mean of its divisors is an integer number (2956800).

Almost surely, 2^38972404 is an apocalyptic number.

It is an amenable number.

38972404 is a deficient number, since it is larger than the sum of its proper divisors (31990796).

38972404 is a wasteful number, since it uses less digits than its factorization.

38972404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 38972404 is about 6242.7881591481. The cubic root of 38972404 is about 339.0411392137.

The spelling of 38972404 in words is "thirty-eight million, nine hundred seventy-two thousand, four hundred four".