38687880 has 256 divisors, whose sum is σ = 149299200. Its totient is φ = 7787520.

The previous prime is 38687867. The next prime is 38687911. The reversal of 38687880 is 8878683.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 489681 + ... + 489759.

It is an arithmetic number, because the mean of its divisors is an integer number (583200).

Almost surely, 2^38687880 is an apocalyptic number.

38687880 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 38687880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74649600).

38687880 is an abundant number, since it is smaller than the sum of its proper divisors (110611320).

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

38687880 is a wasteful number, since it uses less digits than its factorization.

38687880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 38687880 is about 6219.9581992165. The cubic root of 38687880 is about 338.2140492620.

The spelling of 38687880 in words is "thirty-eight million, six hundred eighty-seven thousand, eight hundred eighty".