442743 has 16 divisors (see below), whose sum is σ = 698880. Its totient is φ = 243936.

The previous prime is 442733. The next prime is 442747. The reversal of 442743 is 347244.

It is not a de Polignac number, because 442743 - 2⁸ = 442487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442747) 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 15 ways as a sum of consecutive naturals, for example, 246 + ... + 972.

It is an arithmetic number, because the mean of its divisors is an integer number (43680).

2⁴⁴²⁷⁴³ is an apocalyptic number.

442743 is a deficient number, since it is larger than the sum of its proper divisors (256137).

442743 is a wasteful number, since it uses less digits than its factorization.

442743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766.

The product of its digits is 2688, while the sum is 24.

The square root of 442743 is about 665.3893596985. The cubic root of 442743 is about 76.2167749182.

Adding to 442743 its reverse (347244), we get a palindrome (789987).

The spelling of 442743 in words is "four hundred forty-two thousand, seven hundred forty-three", and thus it is an iban number.