12439814 has 16 divisors (see below), whose sum is σ = 19345920. Its totient is φ = 5995080.

The previous prime is 12439783. The next prime is 12439829. The reversal of 12439814 is 41893421.

It is a happy number.

12439814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5879 + ... + 7709.

It is an arithmetic number, because the mean of its divisors is an integer number (1209120).

Almost surely, 2^12439814 is an apocalyptic number.

12439814 is a deficient number, since it is larger than the sum of its proper divisors (6906106).

12439814 is a wasteful number, since it uses less digits than its factorization.

12439814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955.

The product of its digits is 6912, while the sum is 32.

The square root of 12439814 is about 3527.0120498802. The cubic root of 12439814 is about 231.7063640430.

The spelling of 12439814 in words is "twelve million, four hundred thirty-nine thousand, eight hundred fourteen".