15980228 has 36 divisors (see below), whose sum is σ = 31091676. Its totient is φ = 7180800.

The previous prime is 15980213. The next prime is 15980233. The reversal of 15980228 is 82208951.

It can be written as a sum of positive squares in 2 ways, for example, as 10745284 + 5234944 = 3278^2 + 2288^2 .

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, 66188 + ... + 66428.

Almost surely, 2^15980228 is an apocalyptic number.

It is an amenable number.

15980228 is a deficient number, since it is larger than the sum of its proper divisors (15111448).

15980228 is a wasteful number, since it uses less digits than its factorization.

15980228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 15980228 is about 3997.5277359888. The cubic root of 15980228 is about 251.8803706983.

The spelling of 15980228 in words is "fifteen million, nine hundred eighty thousand, two hundred twenty-eight".