442431044044243 has 4 divisors (see below), whose sum is σ = 442431092505528. Its totient is φ = 442430995582960.

The previous prime is 442431044044189. The next prime is 442431044044261. The reversal of 442431044044243 is 342440440134244.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 442431044044243 - 2²¹ = 442431041947091 is a prime.

It is a super-2 number, since 2×442431044044243² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442431044044243.

It is not an unprimeable number, because it can be changed into a prime (442431044044643) 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, 5927938 + ... + 30331543.

It is an arithmetic number, because the mean of its divisors is an integer number (110607773126382).

Almost surely, 2^{442431044044243} is an apocalyptic number.

442431044044243 is a deficient number, since it is larger than the sum of its proper divisors (48461285).

442431044044243 is a wasteful number, since it uses less digits than its factorization.

442431044044243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48461284.

The product of its (nonzero) digits is 2359296, while the sum is 43.

Adding to 442431044044243 its reverse (342440440134244), we get a palindrome (784871484178487).

The spelling of 442431044044243 in words is "four hundred forty-two trillion, four hundred thirty-one billion, forty-four million, forty-four thousand, two hundred forty-three".