12880930 has 16 divisors (see below), whose sum is σ = 23985720. Its totient is φ = 4974592.

The previous prime is 12880927. The next prime is 12880949. The reversal of 12880930 is 3908821.

It can be written as a sum of positive squares in 4 ways, for example, as 6765201 + 6115729 = 2601^2 + 2473^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12880892 and 12880901.

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, 21919 + ... + 22498.

Almost surely, 2^12880930 is an apocalyptic number.

12880930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12880930 is a deficient number, since it is larger than the sum of its proper divisors (11104790).

12880930 is a wasteful number, since it uses less digits than its factorization.

12880930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44453.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 12880930 is about 3589.0012538309. The cubic root of 12880930 is about 234.4133852390.

The spelling of 12880930 in words is "twelve million, eight hundred eighty thousand, nine hundred thirty".