12240208 has 20 divisors (see below), whose sum is σ = 24268288. Its totient is φ = 5977440.

The previous prime is 12240203. The next prime is 12240223. The reversal of 12240208 is 80204221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240203) 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 3 ways as a sum of consecutive naturals, for example, 8208 + ... + 9583.

Almost surely, 2^12240208 is an apocalyptic number.

It is an amenable number.

12240208 is a deficient number, since it is larger than the sum of its proper divisors (12028080).

12240208 is a wasteful number, since it uses less digits than its factorization.

12240208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17842 (or 17836 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 12240208 is about 3498.6008632023. The cubic root of 12240208 is about 230.4603759275.

Adding to 12240208 its reverse (80204221), we get a palindrome (92444429).

The spelling of 12240208 in words is "twelve million, two hundred forty thousand, two hundred eight".