12880812 has 24 divisors (see below), whose sum is σ = 34349056. Its totient is φ = 3680208.

The previous prime is 12880811. The next prime is 12880823. The reversal of 12880812 is 21808821.

It is a self number, because there is not a number n which added to its sum of digits gives 12880812.

It is not an unprimeable number, because it can be changed into a prime (12880811) 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 7 ways as a sum of consecutive naturals, for example, 76588 + ... + 76755.

Almost surely, 2^12880812 is an apocalyptic number.

12880812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12880812 is an abundant number, since it is smaller than the sum of its proper divisors (21468244).

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

12880812 is a wasteful number, since it uses less digits than its factorization.

12880812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153357 (or 153355 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 12880812 is about 3588.9848146795. The cubic root of 12880812 is about 234.4126694298.

The spelling of 12880812 in words is "twelve million, eight hundred eighty thousand, eight hundred twelve".