12839944 has 24 divisors (see below), whose sum is σ = 26072010. Its totient is φ = 5925504.

The previous prime is 12839933. The next prime is 12839963. The reversal of 12839944 is 44993821.

It can be written as a sum of positive squares in 3 ways, for example, as 2992900 + 9847044 = 1730^2 + 3138^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12839897 and 12839906.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3397 + ... + 6100.

Almost surely, 2^12839944 is an apocalyptic number.

It is an amenable number.

12839944 is an abundant number, since it is smaller than the sum of its proper divisors (13232066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12839944 is a wasteful number, since it uses less digits than its factorization.

12839944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9529 (or 9512 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 12839944 is about 3583.2867593873. The cubic root of 12839944 is about 234.1644933936.

The spelling of 12839944 in words is "twelve million, eight hundred thirty-nine thousand, nine hundred forty-four".