12845580 has 48 divisors (see below), whose sum is σ = 39239424. Its totient is φ = 3113920.

The previous prime is 12845561. The next prime is 12845597. The reversal of 12845580 is 8554821.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9072 + ... + 10391.

It is an arithmetic number, because the mean of its divisors is an integer number (817488).

Almost surely, 2^12845580 is an apocalyptic number.

12845580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12845580 is an abundant number, since it is smaller than the sum of its proper divisors (26393844).

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

12845580 is a wasteful number, since it uses less digits than its factorization.

12845580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19486 (or 19484 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 12845580 is about 3584.0731019331. The cubic root of 12845580 is about 234.1987499821.

The spelling of 12845580 in words is "twelve million, eight hundred forty-five thousand, five hundred eighty".