38308864 has 88 divisors (see below), whose sum is σ = 88430400. Its totient is φ = 16404480.

The previous prime is 38308859. The next prime is 38308873. The reversal of 38308864 is 46880383.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (88).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213927 + ... + 214105.

Almost surely, 2^38308864 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 38308864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44215200).

38308864 is an abundant number, since it is smaller than the sum of its proper divisors (50121536).

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

38308864 is a wasteful number, since it uses less digits than its factorization.

38308864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 38308864 is about 6189.4154812874. The cubic root of 38308864 is about 337.1059551134.

The spelling of 38308864 in words is "thirty-eight million, three hundred eight thousand, eight hundred sixty-four".