12443242 has 16 divisors (see below), whose sum is σ = 21413952. Its totient is φ = 5312160.

The previous prime is 12443237. The next prime is 12443243. The reversal of 12443242 is 24234421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12443243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2353 + ... + 5515.

It is an arithmetic number, because the mean of its divisors is an integer number (1338372).

Almost surely, 2^12443242 is an apocalyptic number.

12443242 is a deficient number, since it is larger than the sum of its proper divisors (8970710).

12443242 is a wasteful number, since it uses less digits than its factorization.

12443242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3453.

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

The square root of 12443242 is about 3527.4979801553. The cubic root of 12443242 is about 231.7276456170.

Adding to 12443242 its reverse (24234421), we get a palindrome (36677663).

The spelling of 12443242 in words is "twelve million, four hundred forty-three thousand, two hundred forty-two".