441605 has 4 divisors (see below), whose sum is σ = 529932. Its totient is φ = 353280.

The previous prime is 441587. The next prime is 441607. The reversal of 441605 is 506144.

It is a happy number.

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 306916 + 134689 = 554^2 + 367^2 .

It is not a de Polignac number, because 441605 - 2⁸ = 441349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44156 + ... + 44165.

It is an arithmetic number, because the mean of its divisors is an integer number (132483).

2⁴⁴¹⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

441605 is a deficient number, since it is larger than the sum of its proper divisors (88327).

441605 is an equidigital number, since it uses as much as digits as its factorization.

441605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88326.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 441605 is about 664.5336710807. The cubic root of 441605 is about 76.1514178836.

Adding to 441605 its reverse (506144), we get a palindrome (947749).

The spelling of 441605 in words is "four hundred forty-one thousand, six hundred five".