38969920 has 56 divisors (see below), whose sum is σ = 101242368. Its totient is φ = 14169600.

The previous prime is 38969897. The next prime is 38969927. The reversal of 38969920 is 2996983.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38969927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2016 + ... + 9055.

Almost surely, 2^38969920 is an apocalyptic number.

It is an amenable number.

38969920 is an abundant number, since it is smaller than the sum of its proper divisors (62272448).

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

38969920 is a wasteful number, since it uses less digits than its factorization.

38969920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11099 (or 11089 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 38969920 is about 6242.5892064111. The cubic root of 38969920 is about 339.0339358595.

The spelling of 38969920 in words is "thirty-eight million, nine hundred sixty-nine thousand, nine hundred twenty".