304134221 has 8 divisors (see below), whose sum is σ = 319261824. Its totient is φ = 289165360.

The previous prime is 304134209. The next prime is 304134241. The reversal of 304134221 is 122431403.

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 304134221 - 2¹⁰ = 304133197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304134193 and 304134202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304134241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35750 + ... + 43431.

It is an arithmetic number, because the mean of its divisors is an integer number (39907728).

Almost surely, 2^304134221 is an apocalyptic number.

It is an amenable number.

304134221 is a deficient number, since it is larger than the sum of its proper divisors (15127603).

304134221 is a wasteful number, since it uses less digits than its factorization.

304134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79371.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 304134221 is about 17439.4444005536. Note that the first 4 decimals coincide. The cubic root of 304134221 is about 672.4940246287.

Adding to 304134221 its reverse (122431403), we get a palindrome (426565624).

The spelling of 304134221 in words is "three hundred four million, one hundred thirty-four thousand, two hundred twenty-one".