15982980 has 96 divisors (see below), whose sum is σ = 49824768. Its totient is φ = 3801600.

The previous prime is 15982969. The next prime is 15983003. The reversal of 15982980 is 8928951.

It is a happy number.

15982980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23850 + ... + 24510.

It is an arithmetic number, because the mean of its divisors is an integer number (519008).

Almost surely, 2^15982980 is an apocalyptic number.

15982980 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 15982980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24912384).

15982980 is an abundant number, since it is smaller than the sum of its proper divisors (33841788).

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

15982980 is a wasteful number, since it uses less digits than its factorization.

15982980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 15982980 is about 3997.8719339168. The cubic root of 15982980 is about 251.8948288773.

The spelling of 15982980 in words is "fifteen million, nine hundred eighty-two thousand, nine hundred eighty".