12312860 has 48 divisors (see below), whose sum is σ = 30362304. Its totient is φ = 4105728.

The previous prime is 12312851. The next prime is 12312863. The reversal of 12312860 is 6821321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312863) 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 15 ways as a sum of consecutive naturals, for example, 3992 + ... + 6368.

It is an arithmetic number, because the mean of its divisors is an integer number (632548).

Almost surely, 2^12312860 is an apocalyptic number.

12312860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12312860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15181152).

12312860 is an abundant number, since it is smaller than the sum of its proper divisors (18049444).

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

12312860 is a wasteful number, since it uses less digits than its factorization.

12312860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430 (or 2428 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 12312860 is about 3508.9685094056. The cubic root of 12312860 is about 230.9154441500.

The spelling of 12312860 in words is "twelve million, three hundred twelve thousand, eight hundred sixty".