12944666 has 16 divisors (see below), whose sum is σ = 22239360. Its totient is φ = 5535600.

The previous prime is 12944663. The next prime is 12944669. The reversal of 12944666 is 66644921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12944663) and next prime (12944669).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12944663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9155 + ... + 10473.

It is an arithmetic number, because the mean of its divisors is an integer number (1389960).

Almost surely, 2^12944666 is an apocalyptic number.

12944666 is a deficient number, since it is larger than the sum of its proper divisors (9294694).

12944666 is a wasteful number, since it uses less digits than its factorization.

12944666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029.

The product of its digits is 62208, while the sum is 38.

The square root of 12944666 is about 3597.8696474442. The cubic root of 12944666 is about 234.7993821250.

The spelling of 12944666 in words is "twelve million, nine hundred forty-four thousand, six hundred sixty-six".