12858472 has 32 divisors (see below), whose sum is σ = 27449280. Its totient is φ = 5589760.

The previous prime is 12858467. The next prime is 12858493. The reversal of 12858472 is 27485821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153 + ... + 5200.

It is an arithmetic number, because the mean of its divisors is an integer number (857790).

Almost surely, 2^12858472 is an apocalyptic number.

It is an amenable number.

12858472 is an abundant number, since it is smaller than the sum of its proper divisors (14590808).

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

12858472 is a wasteful number, since it uses less digits than its factorization.

12858472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6393 (or 6389 counting only the distinct ones).

The product of its digits is 35840, while the sum is 37.

The square root of 12858472 is about 3585.8711633298. The cubic root of 12858472 is about 234.2770721438.

The spelling of 12858472 in words is "twelve million, eight hundred fifty-eight thousand, four hundred seventy-two".