12739244 has 12 divisors (see below), whose sum is σ = 25478544. Its totient is φ = 5459664.

The previous prime is 12739229. The next prime is 12739247. The reversal of 12739244 is 44293721.

12739244 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12739244.

It is not an unprimeable number, because it can be changed into a prime (12739247) 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, 227459 + ... + 227514.

It is an arithmetic number, because the mean of its divisors is an integer number (2123212).

Almost surely, 2^12739244 is an apocalyptic number.

12739244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12739244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12739244 is a wasteful number, since it uses less digits than its factorization.

12739244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454984 (or 454982 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 12739244 is about 3569.2077552308. The cubic root of 12739244 is about 233.5507243832.

The spelling of 12739244 in words is "twelve million, seven hundred thirty-nine thousand, two hundred forty-four".