12243424 has 24 divisors (see below), whose sum is σ = 24562440. Its totient is φ = 6005376.

The previous prime is 12243403. The next prime is 12243431. The reversal of 12243424 is 42434221.

It is a happy number.

12243424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12243395 and 12243404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1914 + ... + 5305.

It is an arithmetic number, because the mean of its divisors is an integer number (1023435).

Almost surely, 2^12243424 is an apocalyptic number.

It is an amenable number.

12243424 is an abundant number, since it is smaller than the sum of its proper divisors (12319016).

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

12243424 is an equidigital number, since it uses as much as digits as its factorization.

12243424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282 (or 7274 counting only the distinct ones).

The product of its digits is 1536, while the sum is 22.

The square root of 12243424 is about 3499.0604453196. The cubic root of 12243424 is about 230.4805579284.

Adding to 12243424 its reverse (42434221), we get a palindrome (54677645).

The spelling of 12243424 in words is "twelve million, two hundred forty-three thousand, four hundred twenty-four".