38993688 has 24 divisors (see below), whose sum is σ = 105608100. Its totient is φ = 12997872.

The previous prime is 38993687. The next prime is 38993693. The reversal of 38993688 is 88639983.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38993687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270718 + ... + 270861.

Almost surely, 2^38993688 is an apocalyptic number.

It is an amenable number.

38993688 is an abundant number, since it is smaller than the sum of its proper divisors (66614412).

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

38993688 is a wasteful number, since it uses less digits than its factorization.

38993688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541591 (or 541584 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 38993688 is about 6244.4926134955. The cubic root of 38993688 is about 339.1028481634.

The spelling of 38993688 in words is "thirty-eight million, nine hundred ninety-three thousand, six hundred eighty-eight".