441891 has 12 divisors (see below), whose sum is σ = 656032. Its totient is φ = 286416.

The previous prime is 441887. The next prime is 441907. The reversal of 441891 is 198144.

It is not a de Polignac number, because 441891 - 2² = 441887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (441811) 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 11 ways as a sum of consecutive naturals, for example, 331 + ... + 996.

2⁴⁴¹⁸⁹¹ is an apocalyptic number.

441891 is a deficient number, since it is larger than the sum of its proper divisors (214141).

441891 is a wasteful number, since it uses less digits than its factorization.

441891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370 (or 1367 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 441891 is about 664.7488247451. The cubic root of 441891 is about 76.1678538430.

The spelling of 441891 in words is "four hundred forty-one thousand, eight hundred ninety-one".