38992320 has 112 divisors (see below), whose sum is σ = 137586720. Its totient is φ = 10395648.

The previous prime is 38992319. The next prime is 38992367. The reversal of 38992320 is 2329983.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 6384 + ... + 10896.

Almost surely, 2^38992320 is an apocalyptic number.

38992320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38992320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68793360).

38992320 is an abundant number, since it is smaller than the sum of its proper divisors (98594400).

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

38992320 is a wasteful number, since it uses less digits than its factorization.

38992320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539 (or 4523 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 38992320 is about 6244.3830760132. The cubic root of 38992320 is about 339.0988825803.

The spelling of 38992320 in words is "thirty-eight million, nine hundred ninety-two thousand, three hundred twenty".