442241 has 4 divisors (see below), whose sum is σ = 447300. Its totient is φ = 437184.

The previous prime is 442237. The next prime is 442243. The reversal of 442241 is 142244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87025 + 355216 = 295^2 + 596^2 .

It is a cyclic number.

It is not a de Polignac number, because 442241 - 2² = 442237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (442243) 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 3 ways as a sum of consecutive naturals, for example, 2396 + ... + 2573.

It is an arithmetic number, because the mean of its divisors is an integer number (111825).

2⁴⁴²²⁴¹ is an apocalyptic number.

It is an amenable number.

442241 is a deficient number, since it is larger than the sum of its proper divisors (5059).

442241 is an equidigital number, since it uses as much as digits as its factorization.

442241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5058.

The product of its digits is 256, while the sum is 17.

The square root of 442241 is about 665.0120299664. The cubic root of 442241 is about 76.1879581323.

Adding to 442241 its reverse (142244), we get a palindrome (584485).

The spelling of 442241 in words is "four hundred forty-two thousand, two hundred forty-one", and thus it is an iban number.