442122 has 16 divisors (see below), whose sum is σ = 913152.
Its totient is φ = 142560.
The previous prime is 442121. The next prime is 442139. The reversal of 442122 is 221244.
Adding to 442122 its reverse (221244), we get a palindrome (663366).
It is not an unprimeable number, because it can be changed into a prime (442121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1003 + ... + 1374.
It is an arithmetic number, because the mean of its divisors is an integer number (57072).
2442122 is an apocalyptic number.
442122 is an abundant number, since it is smaller than the sum of its proper divisors (471030).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
442122 is a wasteful number, since it uses less digits than its factorization.
442122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2413.
The product of its digits is 128, while the sum is 15.
The square root of 442122 is about 664.9225518810.
The cubic root of 442122 is about 76.1811238645.
The spelling of 442122 in words is "four hundred forty-two thousand, one hundred twenty-two", and thus it is an iban number.