304223223 has 4 divisors (see below), whose sum is σ = 405630968. Its totient is φ = 202815480.

The previous prime is 304223221. The next prime is 304223263. The reversal of 304223223 is 322322403.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 304223223 - 2¹ = 304223221 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 304223223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304223221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50703868 + ... + 50703873.

It is an arithmetic number, because the mean of its divisors is an integer number (101407742).

Almost surely, 2^304223223 is an apocalyptic number.

304223223 is a deficient number, since it is larger than the sum of its proper divisors (101407745).

304223223 is a wasteful number, since it uses less digits than its factorization.

304223223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101407744.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 304223223 is about 17441.9959580319. The cubic root of 304223223 is about 672.5596179003.

Adding to 304223223 its reverse (322322403), we get a palindrome (626545626).

The spelling of 304223223 in words is "three hundred four million, two hundred twenty-three thousand, two hundred twenty-three".