12309580 has 12 divisors (see below), whose sum is σ = 25850160. Its totient is φ = 4923824.

The previous prime is 12309571. The next prime is 12309589. The reversal of 12309580 is 8590321.

It is an interprime number because it is at equal distance from previous prime (12309571) and next prime (12309589).

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (12309589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307720 + ... + 307759.

It is an arithmetic number, because the mean of its divisors is an integer number (2154180).

Almost surely, 2^12309580 is an apocalyptic number.

12309580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12309580 is an abundant number, since it is smaller than the sum of its proper divisors (13540580).

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

12309580 is a wasteful number, since it uses less digits than its factorization.

12309580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615488 (or 615486 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 12309580 is about 3508.5011044604. The cubic root of 12309580 is about 230.8949379497.

The spelling of 12309580 in words is "twelve million, three hundred nine thousand, five hundred eighty".