12968720 has 20 divisors (see below), whose sum is σ = 30152460. Its totient is φ = 5187456.

The previous prime is 12968699. The next prime is 12968743. The reversal of 12968720 is 2786921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8111104 + 4857616 = 2848^2 + 2204^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80975 + ... + 81134.

It is an arithmetic number, because the mean of its divisors is an integer number (1507623).

Almost surely, 2^12968720 is an apocalyptic number.

12968720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12968720 is an abundant number, since it is smaller than the sum of its proper divisors (17183740).

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

12968720 is a wasteful number, since it uses less digits than its factorization.

12968720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162122 (or 162116 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 12968720 is about 3601.2109074588. The cubic root of 12968720 is about 234.9447282113.

The spelling of 12968720 in words is "twelve million, nine hundred sixty-eight thousand, seven hundred twenty".