442344322 has 16 divisors (see below), whose sum is σ = 759719232. Its totient is φ = 189222480.

The previous prime is 442344317. The next prime is 442344323. The reversal of 442344322 is 223443244.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (442344323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21628 + ... + 36775.

It is an arithmetic number, because the mean of its divisors is an integer number (47482452).

Almost surely, 2^442344322 is an apocalyptic number.

442344322 is a deficient number, since it is larger than the sum of its proper divisors (317374910).

442344322 is a wasteful number, since it uses less digits than its factorization.

442344322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58953.

The product of its digits is 18432, while the sum is 28.

The square root of 442344322 is about 21031.9833111383. The cubic root of 442344322 is about 761.9389100544.

Adding to 442344322 its reverse (223443244), we get a palindrome (665787566).

The spelling of 442344322 in words is "four hundred forty-two million, three hundred forty-four thousand, three hundred twenty-two".