404223213 has 8 divisors (see below), whose sum is σ = 541339488. Its totient is φ = 268294544.

The previous prime is 404223203. The next prime is 404223227. The reversal of 404223213 is 312322404.

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 404223213 - 2²⁰ = 403174637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404223213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404223203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296106 + ... + 297467.

It is an arithmetic number, because the mean of its divisors is an integer number (67667436).

Almost surely, 2^404223213 is an apocalyptic number.

It is an amenable number.

404223213 is a deficient number, since it is larger than the sum of its proper divisors (137116275).

404223213 is a wasteful number, since it uses less digits than its factorization.

404223213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593803.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 404223213 is about 20105.3031063946. The cubic root of 404223213 is about 739.3903019127.

Adding to 404223213 its reverse (312322404), we get a palindrome (716545617).

The spelling of 404223213 in words is "four hundred four million, two hundred twenty-three thousand, two hundred thirteen".