13285224 has 24 divisors (see below), whose sum is σ = 35981010. Its totient is φ = 4428384.

The previous prime is 13285213. The next prime is 13285231. The reversal of 13285224 is 42258231.

13285224 is a `hidden beast` number, since 132 + 8 + 522 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11088900 + 2196324 = 3330^2 + 1482^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 5 ways as a sum of consecutive naturals, for example, 92187 + ... + 92330.

Almost surely, 2^13285224 is an apocalyptic number.

It is an amenable number.

13285224 is an abundant number, since it is smaller than the sum of its proper divisors (22695786).

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

13285224 is a wasteful number, since it uses less digits than its factorization.

13285224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184529 (or 184522 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 13285224 is about 3644.8901218007. The cubic root of 13285224 is about 236.8406769816.

The spelling of 13285224 in words is "thirteen million, two hundred eighty-five thousand, two hundred twenty-four".