442442 has 48 divisors (see below), whose sum is σ = 948672. Its totient is φ = 149760.

The previous prime is 442439. The next prime is 442447. The reversal of 442442 is 244244.

It is not an unprimeable number, because it can be changed into a prime (442447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26018 + ... + 26034.

It is an arithmetic number, because the mean of its divisors is an integer number (19764).

2⁴⁴²⁴⁴² is an apocalyptic number.

442442 is an abundant number, since it is smaller than the sum of its proper divisors (506230).

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

442442 is a wasteful number, since it uses less digits than its factorization.

442442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63 (or 50 counting only the distinct ones).

The product of its digits is 1024, while the sum is 20.

The square root of 442442 is about 665.1631378842. The cubic root of 442442 is about 76.1994989439.

Adding to 442442 its reverse (244244), we get a palindrome (686686).

It can be divided in two parts, 44244 and 2, that multiplied together give a palindrome (88488).

The spelling of 442442 in words is "four hundred forty-two thousand, four hundred forty-two", and thus it is an iban number.