12680020 has 24 divisors (see below), whose sum is σ = 26707968. Its totient is φ = 5056800.

The previous prime is 12679991. The next prime is 12680039. The reversal of 12680020 is 2008621.

It is a happy number.

12680020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12680020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7885 + ... + 9355.

It is an arithmetic number, because the mean of its divisors is an integer number (1112832).

Almost surely, 2^12680020 is an apocalyptic number.

12680020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12680020 is an abundant number, since it is smaller than the sum of its proper divisors (14027948).

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

12680020 is a wasteful number, since it uses less digits than its factorization.

12680020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12680020 is about 3560.9015712316. The cubic root of 12680020 is about 233.1882408624.

Adding to 12680020 its reverse (2008621), we get a palindrome (14688641).

The spelling of 12680020 in words is "twelve million, six hundred eighty thousand, twenty".