12880732 has 12 divisors (see below), whose sum is σ = 22765176. Its totient is φ = 6376400.

The previous prime is 12880729. The next prime is 12880739. The reversal of 12880732 is 23708821.

It is a junction number, because it is equal to n+sod(n) for n = 12880694 and 12880703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12880739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15538 + ... + 16345.

It is an arithmetic number, because the mean of its divisors is an integer number (1897098).

Almost surely, 2^12880732 is an apocalyptic number.

It is an amenable number.

12880732 is a deficient number, since it is larger than the sum of its proper divisors (9884444).

12880732 is a wasteful number, since it uses less digits than its factorization.

12880732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31988 (or 31986 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 12880732 is about 3588.9736694492. The cubic root of 12880732 is about 234.4121841329.

The spelling of 12880732 in words is "twelve million, eight hundred eighty thousand, seven hundred thirty-two".