304423421 has 8 divisors (see below), whose sum is σ = 309876000. Its totient is φ = 298980720.

The previous prime is 304423417. The next prime is 304423451. The reversal of 304423421 is 124324403.

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 304423421 - 2² = 304423417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304423451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89726 + ... + 93056.

It is an arithmetic number, because the mean of its divisors is an integer number (38734500).

Almost surely, 2^304423421 is an apocalyptic number.

It is an amenable number.

304423421 is a deficient number, since it is larger than the sum of its proper divisors (5452579).

304423421 is a wasteful number, since it uses less digits than its factorization.

304423421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 304423421 is about 17447.7339789441. The cubic root of 304423421 is about 672.7071143831.

Adding to 304423421 its reverse (124324403), we get a palindrome (428747824).

The spelling of 304423421 in words is "three hundred four million, four hundred twenty-three thousand, four hundred twenty-one".