12880536 has 32 divisors (see below), whose sum is σ = 32659200. Its totient is φ = 4232480.

The previous prime is 12880523. The next prime is 12880559. The reversal of 12880536 is 63508821.

It is a happy number.

It is a super-4 number, since 4×12880536⁴ (a number of 30 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12880497 and 12880506.

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, 2076 + ... + 5483.

It is an arithmetic number, because the mean of its divisors is an integer number (1020600).

Almost surely, 2^12880536 is an apocalyptic number.

It is an amenable number.

12880536 is an abundant number, since it is smaller than the sum of its proper divisors (19778664).

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

12880536 is a wasteful number, since it uses less digits than its factorization.

12880536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7639 (or 7635 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 12880536 is about 3588.9463634889. The cubic root of 12880536 is about 234.4109951472.

The spelling of 12880536 in words is "twelve million, eight hundred eighty thousand, five hundred thirty-six".