12739044 has 48 divisors (see below), whose sum is σ = 31852800. Its totient is φ = 3950496.

The previous prime is 12739043. The next prime is 12739049. The reversal of 12739044 is 44093721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12739043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12979 + ... + 13925.

It is an arithmetic number, because the mean of its divisors is an integer number (663600).

Almost surely, 2^12739044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12739044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15926400).

12739044 is an abundant number, since it is smaller than the sum of its proper divisors (19113756).

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

12739044 is a wasteful number, since it uses less digits than its factorization.

12739044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 1030 counting only the distinct ones).

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

The square root of 12739044 is about 3569.1797376988. The cubic root of 12739044 is about 233.5495021655.

The spelling of 12739044 in words is "twelve million, seven hundred thirty-nine thousand, forty-four".