304424421 has 16 divisors (see below), whose sum is σ = 472639104. Its totient is φ = 170673984.

The previous prime is 304424383. The next prime is 304424437. The reversal of 304424421 is 124424403.

It is a happy number.

It is not a de Polignac number, because 304424421 - 2¹⁰ = 304423397 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 304424391 and 304424400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304424621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135646 + ... + 137871.

It is an arithmetic number, because the mean of its divisors is an integer number (29539944).

Almost surely, 2^304424421 is an apocalyptic number.

It is an amenable number.

304424421 is a deficient number, since it is larger than the sum of its proper divisors (168214683).

304424421 is a wasteful number, since it uses less digits than its factorization.

304424421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273580.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 304424421 is about 17447.7626359370. The cubic root of 304424421 is about 672.7078509738.

Adding to 304424421 its reverse (124424403), we get a palindrome (428848824).

The spelling of 304424421 in words is "three hundred four million, four hundred twenty-four thousand, four hundred twenty-one".