441856 has 20 divisors (see below), whose sum is σ = 883872. Its totient is φ = 220672.

The previous prime is 441841. The next prime is 441877. The reversal of 441856 is 658144.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81 + ... + 943.

2⁴⁴¹⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 441856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441936).

441856 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

441856 is an frugal number, since it uses more digits than its factorization.

441856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 865 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 441856 is about 664.7224984909. The cubic root of 441856 is about 76.1658428302.

The spelling of 441856 in words is "four hundred forty-one thousand, eight hundred fifty-six".