443242271421 has 16 divisors (see below), whose sum is σ = 656690260800. Its totient is φ = 295479077904.

The previous prime is 443242271411. The next prime is 443242271429. The reversal of 443242271421 is 124172242344.

443242271421 is a `hidden beast` number, since 4 + 4 + 3 + 2 + 4 + 227 + 1 + 421 = 666.

It is not a de Polignac number, because 443242271421 - 2¹³ = 443242263229 is a prime.

It is a super-2 number, since 2×443242271421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443242271429) 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, 88770 + ... + 945708.

It is an arithmetic number, because the mean of its divisors is an integer number (41043141300).

Almost surely, 2^443242271421 is an apocalyptic number.

It is an amenable number.

443242271421 is a deficient number, since it is larger than the sum of its proper divisors (213447989379).

443242271421 is a wasteful number, since it uses less digits than its factorization.

443242271421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876105 (or 876099 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The spelling of 443242271421 in words is "four hundred forty-three billion, two hundred forty-two million, two hundred seventy-one thousand, four hundred twenty-one".