442543422 has 96 divisors (see below), whose sum is σ = 1004853600. Its totient is φ = 129310720.

The previous prime is 442543411. The next prime is 442543427. The reversal of 442543422 is 224345244.

It is a self number, because there is not a number n which added to its sum of digits gives 442543422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442543427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4972354 + ... + 4972442.

It is an arithmetic number, because the mean of its divisors is an integer number (10467225).

Almost surely, 2^442543422 is an apocalyptic number.

442543422 is an abundant number, since it is smaller than the sum of its proper divisors (562310178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442543422 is a wasteful number, since it uses less digits than its factorization.

442543422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 181 counting only the distinct ones).

The product of its digits is 30720, while the sum is 30.

The square root of 442543422 is about 21036.7160459992. The cubic root of 442543422 is about 762.0532096130.

Adding to 442543422 its reverse (224345244), we get a palindrome (666888666).

The spelling of 442543422 in words is "four hundred forty-two million, five hundred forty-three thousand, four hundred twenty-two".