38318972 has 12 divisors (see below), whose sum is σ = 70587720. Its totient is φ = 18151056.

The previous prime is 38318971. The next prime is 38319011. The reversal of 38318972 is 27981383.

38318972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38318971) 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, 252023 + ... + 252174.

It is an arithmetic number, because the mean of its divisors is an integer number (5882310).

Almost surely, 2^38318972 is an apocalyptic number.

It is an amenable number.

38318972 is a deficient number, since it is larger than the sum of its proper divisors (32268748).

38318972 is a wasteful number, since it uses less digits than its factorization.

38318972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504220 (or 504218 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 38318972 is about 6190.2319827289. The cubic root of 38318972 is about 337.1356015798.

The spelling of 38318972 in words is "thirty-eight million, three hundred eighteen thousand, nine hundred seventy-two".