12808518 has 16 divisors (see below), whose sum is σ = 26443776. Its totient is φ = 4131720.

The previous prime is 12808513. The next prime is 12808519. The reversal of 12808518 is 81580821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12808511) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 34246 + ... + 34617.

It is an arithmetic number, because the mean of its divisors is an integer number (1652736).

Almost surely, 2^12808518 is an apocalyptic number.

12808518 is an abundant number, since it is smaller than the sum of its proper divisors (13635258).

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

12808518 is a wasteful number, since it uses less digits than its factorization.

12808518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68899.

The product of its (nonzero) digits is 5120, while the sum is 33.

The square root of 12808518 is about 3578.8989927071. The cubic root of 12808518 is about 233.9732966825.

The spelling of 12808518 in words is "twelve million, eight hundred eight thousand, five hundred eighteen".