15930880 has 120 divisors (see below), whose sum is σ = 44782848. Its totient is φ = 5419008.

The previous prime is 15930877. The next prime is 15930913. The reversal of 15930880 is 8803951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125377 + ... + 125503.

Almost surely, 2^15930880 is an apocalyptic number.

15930880 is a gapful number since it is divisible by the number (10) 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 15930880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22391424).

15930880 is an abundant number, since it is smaller than the sum of its proper divisors (28851968).

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

15930880 is an equidigital number, since it uses as much as digits as its factorization.

15930880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 15930880 is about 3991.3506485900. The cubic root of 15930880 is about 251.6208289445.

The spelling of 15930880 in words is "fifteen million, nine hundred thirty thousand, eight hundred eighty".