443322241043421 has 16 divisors (see below), whose sum is σ = 591152899958208. Its totient is φ = 295519872816000.

The previous prime is 443322241043417. The next prime is 443322241043447. The reversal of 443322241043421 is 124340142223344.

It is not a de Polignac number, because 443322241043421 - 2² = 443322241043417 is a prime.

It is a super-2 number, since 2×443322241043421² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 443322241043421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443322241043491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1446829585 + ... + 1447135961.

It is an arithmetic number, because the mean of its divisors is an integer number (36947056247388).

Almost surely, 2^{443322241043421} is an apocalyptic number.

It is an amenable number.

443322241043421 is a deficient number, since it is larger than the sum of its proper divisors (147830658914787).

443322241043421 is a wasteful number, since it uses less digits than its factorization.

443322241043421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350972.

The product of its (nonzero) digits is 442368, while the sum is 39.

Adding to 443322241043421 its reverse (124340142223344), we get a palindrome (567662383266765).

The spelling of 443322241043421 in words is "four hundred forty-three trillion, three hundred twenty-two billion, two hundred forty-one million, forty-three thousand, four hundred twenty-one".