12865224 has 16 divisors (see below), whose sum is σ = 32163120. Its totient is φ = 4288400.

The previous prime is 12865199. The next prime is 12865247. The reversal of 12865224 is 42256821.

It is a junction number, because it is equal to n+sod(n) for n = 12865191 and 12865200.

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, 268002 + ... + 268049.

It is an arithmetic number, because the mean of its divisors is an integer number (2010195).

Almost surely, 2^12865224 is an apocalyptic number.

It is an amenable number.

12865224 is an abundant number, since it is smaller than the sum of its proper divisors (19297896).

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

12865224 is a wasteful number, since it uses less digits than its factorization.

12865224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536060 (or 536056 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 12865224 is about 3586.8125125242. The cubic root of 12865224 is about 234.3180713645.

The spelling of 12865224 in words is "twelve million, eight hundred sixty-five thousand, two hundred twenty-four".