12840108 has 12 divisors (see below), whose sum is σ = 29960280. Its totient is φ = 4280032.

The previous prime is 12840103. The next prime is 12840109. The reversal of 12840108 is 80104821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12840103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534993 + ... + 535016.

It is an arithmetic number, because the mean of its divisors is an integer number (2496690).

Almost surely, 2^12840108 is an apocalyptic number.

It is an amenable number.

12840108 is an abundant number, since it is smaller than the sum of its proper divisors (17120172).

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

12840108 is a wasteful number, since it uses less digits than its factorization.

12840108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070016 (or 1070014 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 12840108 is about 3583.3096433325. The cubic root of 12840108 is about 234.1654903557.

Adding to 12840108 its reverse (80104821), we get a palindrome (92944929).

The spelling of 12840108 in words is "twelve million, eight hundred forty thousand, one hundred eight".