12944239 has 16 divisors (see below), whose sum is σ = 16842240. Its totient is φ = 9646560.

The previous prime is 12944231. The next prime is 12944257. The reversal of 12944239 is 93244921.

12944239 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12944239 - 2³ = 12944231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12944231) 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 15 ways as a sum of consecutive naturals, for example, 1884 + ... + 5425.

It is an arithmetic number, because the mean of its divisors is an integer number (1052640).

Almost surely, 2^12944239 is an apocalyptic number.

12944239 is a deficient number, since it is larger than the sum of its proper divisors (3898001).

12944239 is a wasteful number, since it uses less digits than its factorization.

12944239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7350.

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

The square root of 12944239 is about 3597.8103062835. The cubic root of 12944239 is about 234.7968003554.

The spelling of 12944239 in words is "twelve million, nine hundred forty-four thousand, two hundred thirty-nine".