441806 has 4 divisors (see below), whose sum is σ = 662712. Its totient is φ = 220902.

The previous prime is 441799. The next prime is 441811. The reversal of 441806 is 608144.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 441806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110450 + ... + 110453.

It is an arithmetic number, because the mean of its divisors is an integer number (165678).

2⁴⁴¹⁸⁰⁶ is an apocalyptic number.

441806 is a deficient number, since it is larger than the sum of its proper divisors (220906).

441806 is a wasteful number, since it uses less digits than its factorization.

441806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220905.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 441806 is about 664.6848877476. The cubic root of 441806 is about 76.1629697707.

The spelling of 441806 in words is "four hundred forty-one thousand, eight hundred six".