15941980 has 24 divisors (see below), whose sum is σ = 33980688. Its totient is φ = 6281088.

The previous prime is 15941951. The next prime is 15941999. The reversal of 15941980 is 8914951.

15941980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4609 + ... + 7288.

It is an arithmetic number, because the mean of its divisors is an integer number (1415862).

Almost surely, 2^15941980 is an apocalyptic number.

15941980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15941980 is an abundant number, since it is smaller than the sum of its proper divisors (18038708).

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

15941980 is a wasteful number, since it uses less digits than its factorization.

15941980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11973 (or 11971 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 15941980 is about 3992.7409132074. The cubic root of 15941980 is about 251.6792551534.

The spelling of 15941980 in words is "fifteen million, nine hundred forty-one thousand, nine hundred eighty".