38910768 has 80 divisors (see below), whose sum is σ = 109326336. Its totient is φ = 11854080.

The previous prime is 38910761. The next prime is 38910787. The reversal of 38910768 is 86701983.

It is not an unprimeable number, because it can be changed into a prime (38910761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79003 + ... + 79493.

Almost surely, 2^38910768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38910768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54663168).

38910768 is an abundant number, since it is smaller than the sum of its proper divisors (70415568).

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

38910768 is a wasteful number, since it uses less digits than its factorization.

38910768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 38910768 is about 6237.8496294797. The cubic root of 38910768 is about 338.8623104042.

The spelling of 38910768 in words is "thirty-eight million, nine hundred ten thousand, seven hundred sixty-eight".