12188208 has 40 divisors (see below), whose sum is σ = 32505856. Its totient is φ = 3931200.

The previous prime is 12188191. The next prime is 12188213. The reversal of 12188208 is 80288121.

It is an unprimeable number.

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, 2608 + ... + 5583.

Almost surely, 2^12188208 is an apocalyptic number.

It is an amenable number.

12188208 is an abundant number, since it is smaller than the sum of its proper divisors (20317648).

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

12188208 is a wasteful number, since it uses less digits than its factorization.

12188208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8233 (or 8227 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 12188208 is about 3491.1614113358. The cubic root of 12188208 is about 230.1335582201.

The spelling of 12188208 in words is "twelve million, one hundred eighty-eight thousand, two hundred eight".