12969228 has 24 divisors (see below), whose sum is σ = 30419200. Its totient is φ = 4300560.

The previous prime is 12969223. The next prime is 12969251. The reversal of 12969228 is 82296921.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12969223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328 + ... + 5103.

Almost surely, 2^12969228 is an apocalyptic number.

It is an amenable number.

12969228 is an abundant number, since it is smaller than the sum of its proper divisors (17449972).

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

12969228 is a wasteful number, since it uses less digits than its factorization.

12969228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5637 (or 5635 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 12969228 is about 3601.2814385993. The cubic root of 12969228 is about 234.9477958583.

The spelling of 12969228 in words is "twelve million, nine hundred sixty-nine thousand, two hundred twenty-eight".