442744 has 8 divisors (see below), whose sum is σ = 830160. Its totient is φ = 221368.

The previous prime is 442733. The next prime is 442747. The reversal of 442744 is 447244.

It is a tau number, because it is divible by the number of its divisors (8).

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 polite number, since it can be written as a sum of consecutive naturals, namely, 27664 + ... + 27679.

It is an arithmetic number, because the mean of its divisors is an integer number (103770).

2⁴⁴²⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

442744 is a deficient number, since it is larger than the sum of its proper divisors (387416).

442744 is a wasteful number, since it uses less digits than its factorization.

442744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55349 (or 55345 counting only the distinct ones).

The product of its digits is 3584, while the sum is 25.

The square root of 442744 is about 665.3901111378. The cubic root of 442744 is about 76.2168323004.

Adding to 442744 its reverse (447244), we get a palindrome (889988).

The spelling of 442744 in words is "four hundred forty-two thousand, seven hundred forty-four", and thus it is an iban number.