13289224 has 16 divisors (see below), whose sum is σ = 26834220. Its totient is φ = 6133440.

The previous prime is 13289209. The next prime is 13289231. The reversal of 13289224 is 42298231.

It can be written as a sum of positive squares in 2 ways, for example, as 11009124 + 2280100 = 3318^2 + 1510^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63787 + ... + 63994.

Almost surely, 2^13289224 is an apocalyptic number.

It is an amenable number.

13289224 is an abundant number, since it is smaller than the sum of its proper divisors (13544996).

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

13289224 is a wasteful number, since it uses less digits than its factorization.

13289224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127800 (or 127796 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 13289224 is about 3645.4387938902. The cubic root of 13289224 is about 236.8644444305.

The spelling of 13289224 in words is "thirteen million, two hundred eighty-nine thousand, two hundred twenty-four".