442441 has 4 divisors (see below), whose sum is σ = 450000. Its totient is φ = 434884.

The previous prime is 442439. The next prime is 442447. The reversal of 442441 is 144244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442441 - 2¹ = 442439 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 3691 + ... + 3808.

It is an arithmetic number, because the mean of its divisors is an integer number (112500).

2⁴⁴²⁴⁴¹ is an apocalyptic number.

It is an amenable number.

442441 is a deficient number, since it is larger than the sum of its proper divisors (7559).

442441 is an equidigital number, since it uses as much as digits as its factorization.

442441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7558.

The product of its digits is 512, while the sum is 19.

The square root of 442441 is about 665.1623861885. The cubic root of 442441 is about 76.1994415355.

Adding to 442441 its reverse (144244), we get a palindrome (586685).

It can be divided in two parts, 4424 and 41, that added together give a triangular number (4465 = T₉₄).

The spelling of 442441 in words is "four hundred forty-two thousand, four hundred forty-one", and thus it is an iban number.