38372220 has 72 divisors (see below), whose sum is σ = 120425760. Its totient is φ = 9878400.

The previous prime is 38372207. The next prime is 38372221. The reversal of 38372220 is 2227383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38372221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1545 + ... + 8895.

It is an arithmetic number, because the mean of its divisors is an integer number (1672580).

Almost surely, 2^38372220 is an apocalyptic number.

38372220 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 38372220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60212880).

38372220 is an abundant number, since it is smaller than the sum of its proper divisors (82053540).

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

38372220 is a wasteful number, since it uses less digits than its factorization.

38372220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7395 (or 7390 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 38372220 is about 6194.5314592792. The cubic root of 38372220 is about 337.2916903850.

The spelling of 38372220 in words is "thirty-eight million, three hundred seventy-two thousand, two hundred twenty".