404223999 has 8 divisors (see below), whose sum is σ = 539325312. Its totient is φ = 269302680.

The previous prime is 404223997. The next prime is 404224019. The reversal of 404223999 is 999322404.

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

It is not a de Polignac number, because 404223999 - 2¹ = 404223997 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 404223999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404223991) 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, 39667 + ... + 48804.

It is an arithmetic number, because the mean of its divisors is an integer number (67415664).

Almost surely, 2^404223999 is an apocalyptic number.

404223999 is a deficient number, since it is larger than the sum of its proper divisors (135101313).

404223999 is a wasteful number, since it uses less digits than its factorization.

404223999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89997.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 404223999 is about 20105.3226534667. The cubic root of 404223999 is about 739.3907811532.

The spelling of 404223999 in words is "four hundred four million, two hundred twenty-three thousand, nine hundred ninety-nine".