12457224 has 48 divisors (see below), whose sum is σ = 36336300. Its totient is φ = 3832704.

The previous prime is 12457219. The next prime is 12457301. The reversal of 12457224 is 42275421.

It can be written as a sum of positive squares in 2 ways, for example, as 9108324 + 3348900 = 3018^2 + 1830^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5719 + ... + 7590.

Almost surely, 2^12457224 is an apocalyptic number.

It is an amenable number.

12457224 is an abundant number, since it is smaller than the sum of its proper divisors (23879076).

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

12457224 is a wasteful number, since it uses less digits than its factorization.

12457224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13334 (or 13327 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 12457224 is about 3529.4792817071. The cubic root of 12457224 is about 231.8144076559.

The spelling of 12457224 in words is "twelve million, four hundred fifty-seven thousand, two hundred twenty-four".