12808340 has 24 divisors (see below), whose sum is σ = 26968032. Its totient is φ = 5109920.

The previous prime is 12808321. The next prime is 12808357. The reversal of 12808340 is 4380821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11195 + ... + 12285.

It is an arithmetic number, because the mean of its divisors is an integer number (1123668).

Almost surely, 2^12808340 is an apocalyptic number.

12808340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12808340 is an abundant number, since it is smaller than the sum of its proper divisors (14159692).

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

12808340 is a wasteful number, since it uses less digits than its factorization.

12808340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 12808340 is about 3578.8741246375. The cubic root of 12808340 is about 233.9722128351.

The spelling of 12808340 in words is "twelve million, eight hundred eight thousand, three hundred forty".