441869 has 4 divisors (see below), whose sum is σ = 447996. Its totient is φ = 435744.

The previous prime is 441841. The next prime is 441877. The reversal of 441869 is 968144.

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 126025 + 315844 = 355^2 + 562^2 .

It is a cyclic number.

It is not a de Polignac number, because 441869 - 2⁸ = 441613 is a prime.

It is a super-2 number, since 2×441869² = 390496426322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441829) 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, 2954 + ... + 3099.

It is an arithmetic number, because the mean of its divisors is an integer number (111999).

2⁴⁴¹⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

441869 is a deficient number, since it is larger than the sum of its proper divisors (6127).

441869 is an equidigital number, since it uses as much as digits as its factorization.

441869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6126.

The product of its digits is 6912, while the sum is 32.

The square root of 441869 is about 664.7322769356. The cubic root of 441869 is about 76.1665897902.

The spelling of 441869 in words is "four hundred forty-one thousand, eight hundred sixty-nine".