442017 has 24 divisors (see below), whose sum is σ = 707616. Its totient is φ = 274752.

The previous prime is 442009. The next prime is 442019. The reversal of 442017 is 710244.

It is a happy number.

It is not a de Polignac number, because 442017 - 2³ = 442009 is a prime.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (442019) 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 23 ways as a sum of consecutive naturals, for example, 4078 + ... + 4184.

It is an arithmetic number, because the mean of its divisors is an integer number (29484).

2⁴⁴²⁰¹⁷ is an apocalyptic number.

It is an amenable number.

442017 is a deficient number, since it is larger than the sum of its proper divisors (265599).

442017 is a wasteful number, since it uses less digits than its factorization.

442017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 442017 is about 664.8435906287. The cubic root of 442017 is about 76.1750926096.

The spelling of 442017 in words is "four hundred forty-two thousand, seventeen", and thus it is an iban number.