12668672 has 72 divisors (see below), whose sum is σ = 27814752. Its totient is φ = 5734400.

The previous prime is 12668659. The next prime is 12668717. The reversal of 12668672 is 27686621.

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 7 ways as a sum of consecutive naturals, for example, 178397 + ... + 178467.

It is an arithmetic number, because the mean of its divisors is an integer number (386316).

Almost surely, 2^12668672 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 12668672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13907376).

12668672 is an abundant number, since it is smaller than the sum of its proper divisors (15146080).

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

12668672 is an equidigital number, since it uses as much as digits as its factorization.

12668672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 131 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 12668672 is about 3559.3077978731. The cubic root of 12668672 is about 233.1186560625.

The spelling of 12668672 in words is "twelve million, six hundred sixty-eight thousand, six hundred seventy-two".