12739404 has 12 divisors (see below), whose sum is σ = 29725304. Its totient is φ = 4246464.

The previous prime is 12739403. The next prime is 12739429. The reversal of 12739404 is 40493721.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (12739403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530797 + ... + 530820.

Almost surely, 2^12739404 is an apocalyptic number.

It is an amenable number.

12739404 is an abundant number, since it is smaller than the sum of its proper divisors (16985900).

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

12739404 is a wasteful number, since it uses less digits than its factorization.

12739404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061624 (or 1061622 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 12739404 is about 3569.2301690981. The cubic root of 12739404 is about 233.5517021482.

The spelling of 12739404 in words is "twelve million, seven hundred thirty-nine thousand, four hundred four".