441866 has 4 divisors (see below), whose sum is σ = 662802. Its totient is φ = 220932.

The previous prime is 441841. The next prime is 441877. The reversal of 441866 is 668144.

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

It can be written as a sum of positive squares in only one way, i.e., 395641 + 46225 = 629^2 + 215^2 .

It is a Curzon number.

It is an unprimeable number.

441866 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110465 + ... + 110468.

2⁴⁴¹⁸⁶⁶ is an apocalyptic number.

441866 is a deficient number, since it is larger than the sum of its proper divisors (220936).

441866 is a wasteful number, since it uses less digits than its factorization.

441866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220935.

The product of its digits is 4608, while the sum is 29.

The square root of 441866 is about 664.7300203842. The cubic root of 441866 is about 76.1664174161.

The spelling of 441866 in words is "four hundred forty-one thousand, eight hundred sixty-six".