38938644 has 30 divisors (see below), whose sum is σ = 101794154. Its totient is φ = 12979440.

The previous prime is 38938639. The next prime is 38938651. The reversal of 38938644 is 44683983.

It can be written as a sum of positive squares in only one way, i.e., 38564100 + 374544 = 6210^2 + 612^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38938644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 59767 + ... + 60414.

Almost surely, 2^38938644 is an apocalyptic number.

It is an amenable number.

38938644 is an abundant number, since it is smaller than the sum of its proper divisors (62855510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38938644 is a wasteful number, since it uses less digits than its factorization.

38938644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120197 (or 120186 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 38938644 is about 6240.0836532854. The cubic root of 38938644 is about 338.9432123532.

The spelling of 38938644 in words is "thirty-eight million, nine hundred thirty-eight thousand, six hundred forty-four".