12845560 has 64 divisors (see below), whose sum is σ = 35582400. Its totient is φ = 4064256.

The previous prime is 12845543. The next prime is 12845561. The reversal of 12845560 is 6554821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12845561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1876 + ... + 5404.

It is an arithmetic number, because the mean of its divisors is an integer number (555975).

Almost surely, 2^12845560 is an apocalyptic number.

12845560 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 12845560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17791200).

12845560 is an abundant number, since it is smaller than the sum of its proper divisors (22736840).

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

12845560 is a wasteful number, since it uses less digits than its factorization.

12845560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560 (or 3556 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 12845560 is about 3584.0703118103. The cubic root of 12845560 is about 234.1986284363.

The spelling of 12845560 in words is "twelve million, eight hundred forty-five thousand, five hundred sixty".