12940772 has 12 divisors (see below), whose sum is σ = 24388476. Its totient is φ = 5972640.

The previous prime is 12940769. The next prime is 12940777. The reversal of 12940772 is 27704921.

It can be written as a sum of positive squares in 2 ways, for example, as 4553956 + 8386816 = 2134^2 + 2896^2 .

It is not an unprimeable number, because it can be changed into a prime (12940777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124379 + ... + 124482.

It is an arithmetic number, because the mean of its divisors is an integer number (2032373).

Almost surely, 2^12940772 is an apocalyptic number.

It is an amenable number.

12940772 is a deficient number, since it is larger than the sum of its proper divisors (11447704).

12940772 is a wasteful number, since it uses less digits than its factorization.

12940772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248878 (or 248876 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 12940772 is about 3597.3284531719. The cubic root of 12940772 is about 234.7758357343.

The spelling of 12940772 in words is "twelve million, nine hundred forty thousand, seven hundred seventy-two".