12944646 has 96 divisors (see below), whose sum is σ = 33965568. Its totient is φ = 3510720.

The previous prime is 12944641. The next prime is 12944651. The reversal of 12944646 is 64644921.

12944646 is a `hidden beast` number, since 1 + 2 + 9 + 4 + 4 + 646 = 666.

It is an interprime number because it is at equal distance from previous prime (12944641) and next prime (12944651).

It is a self number, because there is not a number n which added to its sum of digits gives 12944646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12944641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120925 + ... + 121031.

It is an arithmetic number, because the mean of its divisors is an integer number (353808).

Almost surely, 2^12944646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12944646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16982784).

12944646 is an abundant number, since it is smaller than the sum of its proper divisors (21020922).

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

12944646 is a wasteful number, since it uses less digits than its factorization.

12944646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 183 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 12944646 is about 3597.8668680205. The cubic root of 12944646 is about 234.7992612003.

The spelling of 12944646 in words is "twelve million, nine hundred forty-four thousand, six hundred forty-six".