12442432 has 14 divisors (see below), whose sum is σ = 24690578. Its totient is φ = 6221184.

The previous prime is 12442429. The next prime is 12442513. The reversal of 12442432 is 23424421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9144576 + 3297856 = 3024^2 + 1816^2 .

It is a super-2 number, since 2×12442432² = 309628228149248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 97143 + ... + 97270.

Almost surely, 2^12442432 is an apocalyptic number.

It is an amenable number.

12442432 is a deficient number, since it is larger than the sum of its proper divisors (12248146).

12442432 is an equidigital number, since it uses as much as digits as its factorization.

12442432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194425 (or 194415 counting only the distinct ones).

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

The square root of 12442432 is about 3527.3831660312. The cubic root of 12442432 is about 231.7226173598.

Adding to 12442432 its reverse (23424421), we get a palindrome (35866853).

The spelling of 12442432 in words is "twelve million, four hundred forty-two thousand, four hundred thirty-two".