441989 has 4 divisors (see below), whose sum is σ = 457260. Its totient is φ = 426720.

The previous prime is 441971. The next prime is 442003. The reversal of 441989 is 989144.

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 293764 + 148225 = 542^2 + 385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-441989 is a prime.

It is a super-3 number, since 3×441989³ = 259033323445334007, which contains 333 as substring. Note that it is a super-d number also for d = 2.

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 (440989) 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, 7592 + ... + 7649.

It is an arithmetic number, because the mean of its divisors is an integer number (114315).

2⁴⁴¹⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

441989 is a deficient number, since it is larger than the sum of its proper divisors (15271).

441989 is a wasteful number, since it uses less digits than its factorization.

441989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15270.

The product of its digits is 10368, while the sum is 35.

The square root of 441989 is about 664.8225327108. The cubic root of 441989 is about 76.1734841137.

The spelling of 441989 in words is "four hundred forty-one thousand, nine hundred eighty-nine".