12858224 has 40 divisors (see below), whose sum is σ = 25913520. Its totient is φ = 6176768.

The previous prime is 12858221. The next prime is 12858227. The reversal of 12858224 is 42285821.

It is an interprime number because it is at equal distance from previous prime (12858221) and next prime (12858227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12858221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49904 + ... + 50160.

It is an arithmetic number, because the mean of its divisors is an integer number (647838).

Almost surely, 2^12858224 is an apocalyptic number.

It is an amenable number.

12858224 is an abundant number, since it is smaller than the sum of its proper divisors (13055296).

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

12858224 is a wasteful number, since it uses less digits than its factorization.

12858224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 371 counting only the distinct ones).

The product of its digits is 10240, while the sum is 32.

The square root of 12858224 is about 3585.8365830026. The cubic root of 12858224 is about 234.2755659750.

The spelling of 12858224 in words is "twelve million, eight hundred fifty-eight thousand, two hundred twenty-four".