442434422 has 8 divisors (see below), whose sum is σ = 668718072. Its totient is φ = 219528400.

The previous prime is 442434413. The next prime is 442434427. The reversal of 442434422 is 224434244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442434427) 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, 844079 + ... + 844602.

It is an arithmetic number, because the mean of its divisors is an integer number (83589759).

Almost surely, 2^442434422 is an apocalyptic number.

442434422 is a deficient number, since it is larger than the sum of its proper divisors (226283650).

442434422 is a wasteful number, since it uses less digits than its factorization.

442434422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688814.

The product of its digits is 24576, while the sum is 29.

The square root of 442434422 is about 21034.1251779103. The cubic root of 442434422 is about 761.9906390144.

Adding to 442434422 its reverse (224434244), we get a palindrome (666868666).

The spelling of 442434422 in words is "four hundred forty-two million, four hundred thirty-four thousand, four hundred twenty-two".