12434421344 has 24 divisors (see below), whose sum is σ = 24494833440. Its totient is φ = 6213511296.

The previous prime is 12434421341. The next prime is 12434421397. The reversal of 12434421344 is 44312443421.

It is a super-2 number, since 2×12434421344² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 12434421344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434421341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60584 + ... + 168935.

It is an arithmetic number, because the mean of its divisors is an integer number (1020618060).

Almost surely, 2^12434421344 is an apocalyptic number.

It is an amenable number.

12434421344 is a deficient number, since it is larger than the sum of its proper divisors (12060412096).

12434421344 is a wasteful number, since it uses less digits than its factorization.

12434421344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231222 (or 231214 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

Adding to 12434421344 its reverse (44312443421), we get a palindrome (56746864765).

The spelling of 12434421344 in words is "twelve billion, four hundred thirty-four million, four hundred twenty-one thousand, three hundred forty-four".