12444432330 has 64 divisors (see below), whose sum is σ = 33196583808. Its totient is φ = 2959906560.

The previous prime is 12444432323. The next prime is 12444432359. The reversal of 12444432330 is 3323444421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338269 + ... + 373248.

It is an arithmetic number, because the mean of its divisors is an integer number (518696622).

Almost surely, 2^12444432330 is an apocalyptic number.

12444432330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12444432330 is an abundant number, since it is smaller than the sum of its proper divisors (20752151478).

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

12444432330 is a wasteful number, since it uses less digits than its factorization.

12444432330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711591.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 12444432330 its reverse (3323444421), we get a palindrome (15767876751).

The spelling of 12444432330 in words is "twelve billion, four hundred forty-four million, four hundred thirty-two thousand, three hundred thirty".