12860720 has 40 divisors (see below), whose sum is σ = 31478640. Its totient is φ = 4872960.

The previous prime is 12860711. The next prime is 12860723. The reversal of 12860720 is 2706821.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 12860720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12860723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2711 + ... + 5750.

It is an arithmetic number, because the mean of its divisors is an integer number (786966).

Almost surely, 2^12860720 is an apocalyptic number.

12860720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12860720 is an abundant number, since it is smaller than the sum of its proper divisors (18617920).

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

12860720 is a wasteful number, since it uses less digits than its factorization.

12860720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8493 (or 8487 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12860720 is about 3586.1846020527. The cubic root of 12860720 is about 234.2907239517.

The spelling of 12860720 in words is "twelve million, eight hundred sixty thousand, seven hundred twenty".