304230421 has 12 divisors (see below), whose sum is σ = 336636832. Its totient is φ = 274725000.

The previous prime is 304230371. The next prime is 304230427. The reversal of 304230421 is 124032403.

It is not a de Polignac number, because 304230421 - 2⁷ = 304230293 is a prime.

It is a super-2 number, since 2×304230421² = 185112298123674482, which contains 22 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 (304230427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9946 + ... + 26596.

Almost surely, 2^304230421 is an apocalyptic number.

It is an amenable number.

304230421 is a deficient number, since it is larger than the sum of its proper divisors (32406411).

304230421 is a wasteful number, since it uses less digits than its factorization.

304230421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16824 (or 16813 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 304230421 is about 17442.2022978751. The cubic root of 304230421 is about 672.5649221698.

Adding to 304230421 its reverse (124032403), we get a palindrome (428262824).

The spelling of 304230421 in words is "three hundred four million, two hundred thirty thousand, four hundred twenty-one".