12928680 has 64 divisors (see below), whose sum is σ = 43099200. Its totient is φ = 3447360.

The previous prime is 12928679. The next prime is 12928697. The reversal of 12928680 is 8682921.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4906 + ... + 7065.

It is an arithmetic number, because the mean of its divisors is an integer number (673425).

Almost surely, 2^12928680 is an apocalyptic number.

12928680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12928680 is an abundant number, since it is smaller than the sum of its proper divisors (30170520).

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

12928680 is a wasteful number, since it uses less digits than its factorization.

12928680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11991 (or 11981 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 12928680 is about 3595.6473686945. The cubic root of 12928680 is about 234.7026872364.

The spelling of 12928680 in words is "twelve million, nine hundred twenty-eight thousand, six hundred eighty".