13228504 has 16 divisors (see below), whose sum is σ = 24849720. Its totient is φ = 6601920.

The previous prime is 13228489. The next prime is 13228529. The reversal of 13228504 is 40582231.

It is a congruent number.

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, 4332 + ... + 6724.

Almost surely, 2^13228504 is an apocalyptic number.

It is an amenable number.

13228504 is a deficient number, since it is larger than the sum of its proper divisors (11621216).

13228504 is a wasteful number, since it uses less digits than its factorization.

13228504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090 (or 3086 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 13228504 is about 3637.1010434136. The cubic root of 13228504 is about 236.5031399178.

The spelling of 13228504 in words is "thirteen million, two hundred twenty-eight thousand, five hundred four".