442313222 has 32 divisors (see below), whose sum is σ = 735762720. Its totient is φ = 199311840.

The previous prime is 442313197. The next prime is 442313227. The reversal of 442313222 is 222313244.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442313227) 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 15 ways as a sum of consecutive naturals, for example, 187772 + ... + 190112.

It is an arithmetic number, because the mean of its divisors is an integer number (22992585).

Almost surely, 2^442313222 is an apocalyptic number.

442313222 is a deficient number, since it is larger than the sum of its proper divisors (293449498).

442313222 is a wasteful number, since it uses less digits than its factorization.

442313222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425 (or 2399 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 442313222 is about 21031.2439479932. The cubic root of 442313222 is about 761.9210530335.

Adding to 442313222 its reverse (222313244), we get a palindrome (664626466).

The spelling of 442313222 in words is "four hundred forty-two million, three hundred thirteen thousand, two hundred twenty-two".