12442132 has 12 divisors (see below), whose sum is σ = 21974260. Its totient is φ = 6163776.

The previous prime is 12442117. The next prime is 12442139. The reversal of 12442132 is 23124421.

It can be written as a sum of positive squares in 2 ways, for example, as 4857616 + 7584516 = 2204^2 + 2754^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442139) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13833 + ... + 14704.

Almost surely, 2^12442132 is an apocalyptic number.

It is an amenable number.

12442132 is a deficient number, since it is larger than the sum of its proper divisors (9532128).

12442132 is a wasteful number, since it uses less digits than its factorization.

12442132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28650 (or 28648 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 12442132 is about 3527.3406413331. The cubic root of 12442132 is about 231.7207549869.

Adding to 12442132 its reverse (23124421), we get a palindrome (35566553).

The spelling of 12442132 in words is "twelve million, four hundred forty-two thousand, one hundred thirty-two".