12556860 has 96 divisors (see below), whose sum is σ = 37373952. Its totient is φ = 3144960.

The previous prime is 12556811. The next prime is 12556867. The reversal of 12556860 is 6865521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12556867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79902 + ... + 80058.

It is an arithmetic number, because the mean of its divisors is an integer number (389312).

Almost surely, 2^12556860 is an apocalyptic number.

12556860 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 12556860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18686976).

12556860 is an abundant number, since it is smaller than the sum of its proper divisors (24817092).

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

12556860 is a wasteful number, since it uses less digits than its factorization.

12556860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 12556860 is about 3543.5660005142. The cubic root of 12556860 is about 232.4308037808.

The spelling of 12556860 in words is "twelve million, five hundred fifty-six thousand, eight hundred sixty".