12706280 has 32 divisors (see below), whose sum is σ = 29514240. Its totient is φ = 4918080.

The previous prime is 12706279. The next prime is 12706289. The reversal of 12706280 is 8260721.

It is a super-2 number, since 2×12706280² = 322899102876800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12706289) 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, 3884 + ... + 6363.

It is an arithmetic number, because the mean of its divisors is an integer number (922320).

Almost surely, 2^12706280 is an apocalyptic number.

12706280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12706280 is an abundant number, since it is smaller than the sum of its proper divisors (16807960).

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

12706280 is a wasteful number, since it uses less digits than its factorization.

12706280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10289 (or 10285 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12706280 is about 3564.5869325912. The cubic root of 12706280 is about 233.3491055098.

The spelling of 12706280 in words is "twelve million, seven hundred six thousand, two hundred eighty".