12432444 has 24 divisors (see below), whose sum is σ = 29794128. Its totient is φ = 4032000.

The previous prime is 12432391. The next prime is 12432449. The reversal of 12432444 is 44423421.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432449) 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, 13557 + ... + 14444.

It is an arithmetic number, because the mean of its divisors is an integer number (1241422).

Almost surely, 2^12432444 is an apocalyptic number.

It is an amenable number.

12432444 is an abundant number, since it is smaller than the sum of its proper divisors (17361684).

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

12432444 is a wasteful number, since it uses less digits than its factorization.

12432444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28045 (or 28043 counting only the distinct ones).

The product of its digits is 3072, while the sum is 24.

The square root of 12432444 is about 3525.9671013780. The cubic root of 12432444 is about 231.6605966585.

Adding to 12432444 its reverse (44423421), we get a palindrome (56855865).

The spelling of 12432444 in words is "twelve million, four hundred thirty-two thousand, four hundred forty-four".