12442372 has 6 divisors (see below), whose sum is σ = 21774158. Its totient is φ = 6221184.

The previous prime is 12442349. The next prime is 12442373. The reversal of 12442372 is 27324421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11943936 + 498436 = 3456^2 + 706^2 .

It is not an unprimeable number, because it can be changed into a prime (12442373) 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 as a sum of consecutive naturals, namely, 1555293 + ... + 1555300.

Almost surely, 2^12442372 is an apocalyptic number.

It is an amenable number.

12442372 is a deficient number, since it is larger than the sum of its proper divisors (9331786).

12442372 is a wasteful number, since it uses less digits than its factorization.

12442372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110597 (or 3110595 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 12442372 is about 3527.3746611326. The cubic root of 12442372 is about 231.7222448876.

Adding to 12442372 its reverse (27324421), we get a palindrome (39766793).

The spelling of 12442372 in words is "twelve million, four hundred forty-two thousand, three hundred seventy-two".