404443 has 8 divisors (see below), whose sum is σ = 444528. Its totient is φ = 365664.

The previous prime is 404431. The next prime is 404449. The reversal of 404443 is 344404.

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

It is a de Polignac number, because none of the positive numbers 2^k-404443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404443.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396 + ... + 982.

It is an arithmetic number, because the mean of its divisors is an integer number (55566).

2⁴⁰⁴⁴⁴³ is an apocalyptic number.

404443 is a deficient number, since it is larger than the sum of its proper divisors (40085).

404443 is a wasteful number, since it uses less digits than its factorization.

404443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 404443 is about 635.9583319684. The cubic root of 404443 is about 73.9524286410.

Adding to 404443 its reverse (344404), we get a palindrome (748847).

The spelling of 404443 in words is "four hundred four thousand, four hundred forty-three", and thus it is an iban number.