12240224 has 12 divisors (see below), whose sum is σ = 24098004. Its totient is φ = 6120096.

The previous prime is 12240223. The next prime is 12240227. The reversal of 12240224 is 42204221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240223) 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 as a sum of consecutive naturals, namely, 191222 + ... + 191285.

It is an arithmetic number, because the mean of its divisors is an integer number (2008167).

Almost surely, 2^12240224 is an apocalyptic number.

It is an amenable number.

12240224 is a deficient number, since it is larger than the sum of its proper divisors (11857780).

12240224 is an equidigital number, since it uses as much as digits as its factorization.

12240224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382517 (or 382509 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 12240224 is about 3498.6031498299. The cubic root of 12240224 is about 230.4604763442.

Adding to 12240224 its reverse (42204221), we get a palindrome (54444445).

The spelling of 12240224 in words is "twelve million, two hundred forty thousand, two hundred twenty-four".