404220443 has 8 divisors (see below), whose sum is σ = 441151920. Its totient is φ = 367319680.

The previous prime is 404220433. The next prime is 404220451. The reversal of 404220443 is 344022404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404220443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404220433) 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, 26471 + ... + 38847.

It is an arithmetic number, because the mean of its divisors is an integer number (55143990).

Almost surely, 2^404220443 is an apocalyptic number.

404220443 is a deficient number, since it is larger than the sum of its proper divisors (36931477).

404220443 is a wasteful number, since it uses less digits than its factorization.

404220443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15357.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 404220443 is about 20105.2342189789. The cubic root of 404220443 is about 739.3886129813.

Adding to 404220443 its reverse (344022404), we get a palindrome (748242847).

The spelling of 404220443 in words is "four hundred four million, two hundred twenty thousand, four hundred forty-three".