404404443 has 12 divisors (see below), whose sum is σ = 598387608. Its totient is φ = 263027040.

The previous prime is 404404439. The next prime is 404404457. The reversal of 404404443 is 344404404.

It is not a de Polignac number, because 404404443 - 2² = 404404439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404404433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 547605 + ... + 548342.

It is an arithmetic number, because the mean of its divisors is an integer number (49865634).

Almost surely, 2^404404443 is an apocalyptic number.

404404443 is a deficient number, since it is larger than the sum of its proper divisors (193983165).

404404443 is a wasteful number, since it uses less digits than its factorization.

404404443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095994 (or 1095991 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

The square root of 404404443 is about 20109.8096211774. The cubic root of 404404443 is about 739.5007851632.

Adding to 404404443 its reverse (344404404), we get a palindrome (748808847).

The spelling of 404404443 in words is "four hundred four million, four hundred four thousand, four hundred forty-three".