38897180 has 72 divisors (see below), whose sum is σ = 100069200. Its totient is φ = 12628224.

The previous prime is 38897141. The next prime is 38897191. The reversal of 38897180 is 8179883.

It is a super-2 number, since 2×38897180² = 3025981223904800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17576 + ... + 19664.

It is an arithmetic number, because the mean of its divisors is an integer number (1389850).

Almost surely, 2^38897180 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 38897180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50034600).

38897180 is an abundant number, since it is smaller than the sum of its proper divisors (61172020).

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

38897180 is a wasteful number, since it uses less digits than its factorization.

38897180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131 (or 2122 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 38897180 is about 6236.7603769906. The cubic root of 38897180 is about 338.8228611944.

The spelling of 38897180 in words is "thirty-eight million, eight hundred ninety-seven thousand, one hundred eighty".