12444402432 has 144 divisors (see below), whose sum is σ = 41292986112. Its totient is φ = 3232296960.

The previous prime is 12444402427. The next prime is 12444402433. The reversal of 12444402432 is 23420444421.

It is a self number, because there is not a number n which added to its sum of digits gives 12444402432.

It is not an unprimeable number, because it can be changed into a prime (12444402433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46083 + ... + 164354.

It is an arithmetic number, because the mean of its divisors is an integer number (286756848).

Almost surely, 2^12444402432 is an apocalyptic number.

12444402432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12444402432 is an abundant number, since it is smaller than the sum of its proper divisors (28848583680).

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

12444402432 is a wasteful number, since it uses less digits than its factorization.

12444402432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210474 (or 210460 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 12444402432 its reverse (23420444421), we get a palindrome (35864846853).

The spelling of 12444402432 in words is "twelve billion, four hundred forty-four million, four hundred two thousand, four hundred thirty-two".