12804580 has 12 divisors (see below), whose sum is σ = 26889660. Its totient is φ = 5121824.

The previous prime is 12804569. The next prime is 12804599. The reversal of 12804580 is 8540821.

It can be written as a sum of positive squares in 2 ways, for example, as 8444836 + 4359744 = 2906^2 + 2088^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320095 + ... + 320134.

It is an arithmetic number, because the mean of its divisors is an integer number (2240805).

Almost surely, 2^12804580 is an apocalyptic number.

12804580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12804580 is an abundant number, since it is smaller than the sum of its proper divisors (14085080).

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

12804580 is a wasteful number, since it uses less digits than its factorization.

12804580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640238 (or 640236 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 12804580 is about 3578.3487812118. The cubic root of 12804580 is about 233.9493157326.

The spelling of 12804580 in words is "twelve million, eight hundred four thousand, five hundred eighty".