442304322 has 16 divisors (see below), whose sum is σ = 884908800. Its totient is φ = 147384752.

The previous prime is 442304293. The next prime is 442304323. The reversal of 442304322 is 223403244.

It is a super-2 number, since 2×442304322² = 391266226519759368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442304292 and 442304301.

It is not an unprimeable number, because it can be changed into a prime (442304323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9679 + ... + 31277.

It is an arithmetic number, because the mean of its divisors is an integer number (55306800).

Almost surely, 2^442304322 is an apocalyptic number.

442304322 is an abundant number, since it is smaller than the sum of its proper divisors (442604478).

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

442304322 is a wasteful number, since it uses less digits than its factorization.

442304322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25017.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 442304322 is about 21031.0323569719. The cubic root of 442304322 is about 761.9159426709.

Adding to 442304322 its reverse (223403244), we get a palindrome (665707566).

The spelling of 442304322 in words is "four hundred forty-two million, three hundred four thousand, three hundred twenty-two".