38972944 has 10 divisors (see below), whose sum is σ = 75510110. Its totient is φ = 19486464.

The previous prime is 38972939. The next prime is 38972953. The reversal of 38972944 is 44927983.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 38937600 + 35344 = 6240^2 + 188^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38972894 and 38972903.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1217889 + ... + 1217920.

It is an arithmetic number, because the mean of its divisors is an integer number (7551011).

Almost surely, 2^38972944 is an apocalyptic number.

It is an amenable number.

38972944 is a deficient number, since it is larger than the sum of its proper divisors (36537166).

38972944 is a wasteful number, since it uses less digits than its factorization.

38972944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435817 (or 2435811 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 38972944 is about 6242.8314089041. The cubic root of 38972944 is about 339.0427051197.

The spelling of 38972944 in words is "thirty-eight million, nine hundred seventy-two thousand, nine hundred forty-four".