12980228 has 6 divisors (see below), whose sum is σ = 22715406. Its totient is φ = 6490112.

The previous prime is 12980221. The next prime is 12980263. The reversal of 12980228 is 82208921.

It can be written as a sum of positive squares in only one way, i.e., 12054784 + 925444 = 3472^2 + 962^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12980194 and 12980203.

It is not an unprimeable number, because it can be changed into a prime (12980221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1622525 + ... + 1622532.

It is an arithmetic number, because the mean of its divisors is an integer number (3785901).

Almost surely, 2^12980228 is an apocalyptic number.

It is an amenable number.

12980228 is a deficient number, since it is larger than the sum of its proper divisors (9735178).

12980228 is a wasteful number, since it uses less digits than its factorization.

12980228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245061 (or 3245059 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 12980228 is about 3602.8083490522. The cubic root of 12980228 is about 235.0142016466.

The spelling of 12980228 in words is "twelve million, nine hundred eighty thousand, two hundred twenty-eight".