432444443421 has 32 divisors (see below), whose sum is σ = 580900320000. Its totient is φ = 286153620480.

The previous prime is 432444443393. The next prime is 432444443437. The reversal of 432444443421 is 124344444234.

It is a happy number.

It is not a de Polignac number, because 432444443421 - 2¹⁸ = 432444181277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 432444443421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432444443461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279175755 + ... + 279177303.

It is an arithmetic number, because the mean of its divisors is an integer number (18153135000).

Almost surely, 2^432444443421 is an apocalyptic number.

It is an amenable number.

432444443421 is a deficient number, since it is larger than the sum of its proper divisors (148455876579).

432444443421 is a wasteful number, since it uses less digits than its factorization.

432444443421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949.

The product of its digits is 589824, while the sum is 39.

Adding to 432444443421 its reverse (124344444234), we get a palindrome (556788887655).

The spelling of 432444443421 in words is "four hundred thirty-two billion, four hundred forty-four million, four hundred forty-three thousand, four hundred twenty-one".