12444430032 has 80 divisors (see below), whose sum is σ = 37821329280. Its totient is φ = 3904132608.

The previous prime is 12444430001. The next prime is 12444430069. The reversal of 12444430032 is 23003444421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12444429978 and 12444430005.

It is a congruent number.

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, 839908 + ... + 854595.

It is an arithmetic number, because the mean of its divisors is an integer number (472766616).

Almost surely, 2^12444430032 is an apocalyptic number.

12444430032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12444430032 is an abundant number, since it is smaller than the sum of its proper divisors (25376899248).

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

12444430032 is a wasteful number, since it uses less digits than its factorization.

12444430032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694537 (or 1694525 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 12444430032 its reverse (23003444421), we get a palindrome (35447874453).

The spelling of 12444430032 in words is "twelve billion, four hundred forty-four million, four hundred thirty thousand, thirty-two".