304230220 has 36 divisors (see below), whose sum is σ = 743193360. Its totient is φ = 104307168.

The previous prime is 304230193. The next prime is 304230253. The reversal of 304230220 is 22032403.

It is a super-2 number, since 2×304230220² = 185112053522496800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304230194 and 304230203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154240 + ... + 156199.

It is an arithmetic number, because the mean of its divisors is an integer number (20644260).

Almost surely, 2^304230220 is an apocalyptic number.

It is an amenable number.

304230220 is an abundant number, since it is smaller than the sum of its proper divisors (438963140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304230220 is a wasteful number, since it uses less digits than its factorization.

304230220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310462 (or 310453 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 304230220 is about 17442.1965359871. The cubic root of 304230220 is about 672.5647740523.

Adding to 304230220 its reverse (22032403), we get a palindrome (326262623).

The spelling of 304230220 in words is "three hundred four million, two hundred thirty thousand, two hundred twenty".