12881280 has 64 divisors (see below), whose sum is σ = 41065200. Its totient is φ = 3434496.

The previous prime is 12881273. The next prime is 12881299. The reversal of 12881280 is 8218821.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1435 + ... + 5274.

Almost surely, 2^12881280 is an apocalyptic number.

12881280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12881280 is an abundant number, since it is smaller than the sum of its proper divisors (28183920).

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

12881280 is an equidigital number, since it uses as much as digits as its factorization.

12881280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6731 (or 6719 counting only the distinct ones).

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

The square root of 12881280 is about 3589.0500135830. The cubic root of 12881280 is about 234.4155083761.

The spelling of 12881280 in words is "twelve million, eight hundred eighty-one thousand, two hundred eighty".