15980396 has 12 divisors (see below), whose sum is σ = 28360080. Its totient is φ = 7877520.

The previous prime is 15980389. The next prime is 15980429. The reversal of 15980396 is 69308951.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27851 + ... + 28418.

It is an arithmetic number, because the mean of its divisors is an integer number (2363340).

Almost surely, 2^15980396 is an apocalyptic number.

It is an amenable number.

15980396 is a deficient number, since it is larger than the sum of its proper divisors (12379684).

15980396 is a wasteful number, since it uses less digits than its factorization.

15980396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56344 (or 56342 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 15980396 is about 3997.5487489210. The cubic root of 15980396 is about 251.8812533672.

The spelling of 15980396 in words is "fifteen million, nine hundred eighty thousand, three hundred ninety-six".