38972788 has 6 divisors (see below), whose sum is σ = 68202386. Its totient is φ = 19486392.

The previous prime is 38972777. The next prime is 38972807. The reversal of 38972788 is 88727983.

38972788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 22014864 + 16957924 = 4692^2 + 4118^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4871595 + ... + 4871602.

Almost surely, 2^38972788 is an apocalyptic number.

It is an amenable number.

38972788 is a deficient number, since it is larger than the sum of its proper divisors (29229598).

38972788 is a wasteful number, since it uses less digits than its factorization.

38972788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9743201 (or 9743199 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 52.

The square root of 38972788 is about 6242.8189145610. The cubic root of 38972788 is about 339.0422527484.

The spelling of 38972788 in words is "thirty-eight million, nine hundred seventy-two thousand, seven hundred eighty-eight".