443641 has 8 divisors (see below), whose sum is σ = 499968. Its totient is φ = 390000.

The previous prime is 443629. The next prime is 443659. The reversal of 443641 is 146344.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 443641 - 2⁵ = 443609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (443041) 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 7 ways as a sum of consecutive naturals, for example, 310 + ... + 991.

It is an arithmetic number, because the mean of its divisors is an integer number (62496).

2⁴⁴³⁶⁴¹ is an apocalyptic number.

It is an amenable number.

443641 is a deficient number, since it is larger than the sum of its proper divisors (56327).

443641 is a wasteful number, since it uses less digits than its factorization.

443641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343.

The product of its digits is 1152, while the sum is 22.

The square root of 443641 is about 666.0638107569. The cubic root of 443641 is about 76.2682693839.

Adding to 443641 its reverse (146344), we get a palindrome (589985).

The spelling of 443641 in words is "four hundred forty-three thousand, six hundred forty-one".