12486280 has 32 divisors (see below), whose sum is σ = 28194840. Its totient is φ = 4976640.

The previous prime is 12486251. The next prime is 12486281. The reversal of 12486280 is 8268421.

It can be written as a sum of positive squares in 4 ways, for example, as 12152196 + 334084 = 3486^2 + 578^2 .

It is not an unprimeable number, because it can be changed into a prime (12486281) 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, 21352 + ... + 21928.

Almost surely, 2^12486280 is an apocalyptic number.

12486280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12486280 is an abundant number, since it is smaller than the sum of its proper divisors (15708560).

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

12486280 is a wasteful number, since it uses less digits than its factorization.

12486280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 12486280 is about 3533.5930722142. The cubic root of 12486280 is about 231.9945004642.

The spelling of 12486280 in words is "twelve million, four hundred eighty-six thousand, two hundred eighty".