12308856 has 64 divisors (see below), whose sum is σ = 36046080. Its totient is φ = 3429120.

The previous prime is 12308843. The next prime is 12308861. The reversal of 12308856 is 65880321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5995 + ... + 7781.

It is an arithmetic number, because the mean of its divisors is an integer number (563220).

Almost surely, 2^12308856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12308856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18023040).

12308856 is an abundant number, since it is smaller than the sum of its proper divisors (23737224).

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

12308856 is a wasteful number, since it uses less digits than its factorization.

12308856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844 (or 1840 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 12308856 is about 3508.3979249794. The cubic root of 12308856 is about 230.8904110903.

The spelling of 12308856 in words is "twelve million, three hundred eight thousand, eight hundred fifty-six".