12308818 has 16 divisors (see below), whose sum is σ = 19932480. Its totient is φ = 5683216.

The previous prime is 12308801. The next prime is 12308819. The reversal of 12308818 is 81880321.

It is a self number, because there is not a number n which added to its sum of digits gives 12308818.

It is not an unprimeable number, because it can be changed into a prime (12308819) 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 7 ways as a sum of consecutive naturals, for example, 3280 + ... + 5947.

It is an arithmetic number, because the mean of its divisors is an integer number (1245780).

Almost surely, 2^12308818 is an apocalyptic number.

12308818 is a deficient number, since it is larger than the sum of its proper divisors (7623662).

12308818 is a wasteful number, since it uses less digits than its factorization.

12308818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9281.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 12308818 is about 3508.3925093980. The cubic root of 12308818 is about 230.8901734878.

The spelling of 12308818 in words is "twelve million, three hundred eight thousand, eight hundred eighteen".