304542223 has 4 divisors (see below), whose sum is σ = 307388520. Its totient is φ = 301695928.

The previous prime is 304542221. The next prime is 304542239. The reversal of 304542223 is 322245403.

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

It is a cyclic number.

It is not a de Polignac number, because 304542223 - 2¹ = 304542221 is a prime.

It is a super-3 number, since 3×304542223³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304542221) 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, 1422988 + ... + 1423201.

It is an arithmetic number, because the mean of its divisors is an integer number (76847130).

Almost surely, 2^304542223 is an apocalyptic number.

304542223 is a deficient number, since it is larger than the sum of its proper divisors (2846297).

304542223 is a wasteful number, since it uses less digits than its factorization.

304542223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846296.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 304542223 is about 17451.1381577248. The cubic root of 304542223 is about 672.7946115457.

Adding to 304542223 its reverse (322245403), we get a palindrome (626787626).

The spelling of 304542223 in words is "three hundred four million, five hundred forty-two thousand, two hundred twenty-three".