38722560 has 88 divisors (see below), whose sum is σ = 123900816. Its totient is φ = 10321920.

The previous prime is 38722559. The next prime is 38722601. The reversal of 38722560 is 6522783.

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, 14100 + ... + 16620.

Almost surely, 2^38722560 is an apocalyptic number.

38722560 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 38722560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61950408).

38722560 is an abundant number, since it is smaller than the sum of its proper divisors (85178256).

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

38722560 is a wasteful number, since it uses less digits than its factorization.

38722560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549 (or 2531 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 38722560 is about 6222.7453748326. The cubic root of 38722560 is about 338.3150779757.

The spelling of 38722560 in words is "thirty-eight million, seven hundred twenty-two thousand, five hundred sixty".