12739760 has 80 divisors (see below), whose sum is σ = 33426432. Its totient is φ = 4473600.

The previous prime is 12739721. The next prime is 12739763. The reversal of 12739760 is 6793721.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 12739760.

It is not an unprimeable number, because it can be changed into a prime (12739763) 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, 27047 + ... + 27513.

Almost surely, 2^12739760 is an apocalyptic number.

12739760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12739760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16713216).

12739760 is an abundant number, since it is smaller than the sum of its proper divisors (20686672).

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

12739760 is a wasteful number, since it uses less digits than its factorization.

12739760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 12739760 is about 3569.2800394477. The cubic root of 12739760 is about 233.5538776459.

The spelling of 12739760 in words is "twelve million, seven hundred thirty-nine thousand, seven hundred sixty".