12944392 has 8 divisors (see below), whose sum is σ = 24270750. Its totient is φ = 6472192.

The previous prime is 12944389. The next prime is 12944443. The reversal of 12944392 is 29344921.

It can be written as a sum of positive squares in only one way, i.e., 12916836 + 27556 = 3594^2 + 166^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 809017 + ... + 809032.

Almost surely, 2^12944392 is an apocalyptic number.

It is an amenable number.

12944392 is a deficient number, since it is larger than the sum of its proper divisors (11326358).

12944392 is a wasteful number, since it uses less digits than its factorization.

12944392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618055 (or 1618051 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 12944392 is about 3597.8315691538. The cubic root of 12944392 is about 234.7977254456.

It can be divided in two parts, 129 and 44392, that added together give a square (44521 = 211²).

The spelling of 12944392 in words is "twelve million, nine hundred forty-four thousand, three hundred ninety-two".