38818972 has 6 divisors (see below), whose sum is σ = 67933208. Its totient is φ = 19409484.

The previous prime is 38818943. The next prime is 38818979. The reversal of 38818972 is 27981883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38818979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4852368 + ... + 4852375.

Almost surely, 2^38818972 is an apocalyptic number.

It is an amenable number.

38818972 is a deficient number, since it is larger than the sum of its proper divisors (29114236).

38818972 is a wasteful number, since it uses less digits than its factorization.

38818972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9704747 (or 9704745 counting only the distinct ones).

The product of its digits is 193536, while the sum is 46.

The square root of 38818972 is about 6230.4873003642. The cubic root of 38818972 is about 338.5956258876.

The spelling of 38818972 in words is "thirty-eight million, eight hundred eighteen thousand, nine hundred seventy-two".