12944457 has 12 divisors (see below), whose sum is σ = 18753280. Its totient is φ = 8603928.

The previous prime is 12944443. The next prime is 12944473. The reversal of 12944457 is 75444921.

It is a happy number.

It is not a de Polignac number, because 12944457 - 2⁸ = 12944201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12944257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1344 + ... + 5262.

Almost surely, 2^12944457 is an apocalyptic number.

It is an amenable number.

12944457 is a deficient number, since it is larger than the sum of its proper divisors (5808823).

12944457 is a wasteful number, since it uses less digits than its factorization.

12944457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292 (or 4289 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 12944457 is about 3597.8406023614. The cubic root of 12944457 is about 234.7981184556.

The spelling of 12944457 in words is "twelve million, nine hundred forty-four thousand, four hundred fifty-seven".