13104228 has 12 divisors (see below), whose sum is σ = 30576560. Its totient is φ = 4368072.

The previous prime is 13104209. The next prime is 13104251. The reversal of 13104228 is 82240131.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545998 + ... + 546021.

Almost surely, 2^13104228 is an apocalyptic number.

It is an amenable number.

13104228 is an abundant number, since it is smaller than the sum of its proper divisors (17472332).

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

13104228 is a wasteful number, since it uses less digits than its factorization.

13104228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092026 (or 1092024 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 13104228 is about 3619.9762430160. The cubic root of 13104228 is about 235.7601940229.

Adding to 13104228 its reverse (82240131), we get a palindrome (95344359).

The spelling of 13104228 in words is "thirteen million, one hundred four thousand, two hundred twenty-eight".