38908920 has 64 divisors (see below), whose sum is σ = 123599520. Its totient is φ = 9764864.

The previous prime is 38908901. The next prime is 38909011. The reversal of 38908920 is 2980983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7497 + ... + 11576.

Almost surely, 2^38908920 is an apocalyptic number.

38908920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38908920 is an abundant number, since it is smaller than the sum of its proper divisors (84690600).

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

38908920 is a wasteful number, since it uses less digits than its factorization.

38908920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19104 (or 19100 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 38908920 is about 6237.7014997513. The cubic root of 38908920 is about 338.8569457584.

The spelling of 38908920 in words is "thirty-eight million, nine hundred eight thousand, nine hundred twenty".