12858912 has 180 divisors, whose sum is σ = 42582078. Its totient is φ = 3801600.

The previous prime is 12858887. The next prime is 12858929. The reversal of 12858912 is 21985821.

It can be written as a sum of positive squares in only one way, i.e., 12702096 + 156816 = 3564^2 + 396^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 313612 + ... + 313652.

Almost surely, 2^12858912 is an apocalyptic number.

12858912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12858912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21291039).

12858912 is an abundant number, since it is smaller than the sum of its proper divisors (29723166).

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

12858912 is a wasteful number, since it uses less digits than its factorization.

12858912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 57 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 12858912 is about 3585.9325147024. The cubic root of 12858912 is about 234.2797443310.

The spelling of 12858912 in words is "twelve million, eight hundred fifty-eight thousand, nine hundred twelve".