12431244 has 48 divisors (see below), whose sum is σ = 34899200. Its totient is φ = 3364416.

The previous prime is 12431239. The next prime is 12431281. The reversal of 12431244 is 44213421.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is a self number, because there is not a number n which added to its sum of digits gives 12431244.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2299 + ... + 5490.

Almost surely, 2^12431244 is an apocalyptic number.

12431244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12431244 is an abundant number, since it is smaller than the sum of its proper divisors (22467956).

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

12431244 is a wasteful number, since it uses less digits than its factorization.

12431244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7822 (or 7820 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 12431244 is about 3525.7969311916. The cubic root of 12431244 is about 231.6531429977.

Adding to 12431244 its reverse (44213421), we get a palindrome (56644665).

The spelling of 12431244 in words is "twelve million, four hundred thirty-one thousand, two hundred forty-four".