14432443421 has 32 divisors (see below), whose sum is σ = 16572874752. Its totient is φ = 12448800000.

The previous prime is 14432443411. The next prime is 14432443447. The reversal of 14432443421 is 12434423441.

It is a cyclic number.

It is not a de Polignac number, because 14432443421 - 2⁶ = 14432443357 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14432443411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4622741 + ... + 4625861.

It is an arithmetic number, because the mean of its divisors is an integer number (517902336).

Almost surely, 2^14432443421 is an apocalyptic number.

14432443421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14432443421 is a deficient number, since it is larger than the sum of its proper divisors (2140431331).

14432443421 is a wasteful number, since it uses less digits than its factorization.

14432443421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425.

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

Adding to 14432443421 its reverse (12434423441), we get a palindrome (26866866862).

The spelling of 14432443421 in words is "fourteen billion, four hundred thirty-two million, four hundred forty-three thousand, four hundred twenty-one".