304304133 has 16 divisors (see below), whose sum is σ = 488107520. Its totient is φ = 164735856.

The previous prime is 304304113. The next prime is 304304137. The reversal of 304304133 is 331403403.

It is not a de Polignac number, because 304304133 - 2⁵ = 304304101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304304137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380935 + ... + 381732.

It is an arithmetic number, because the mean of its divisors is an integer number (30506720).

Almost surely, 2^304304133 is an apocalyptic number.

It is an amenable number.

304304133 is a deficient number, since it is larger than the sum of its proper divisors (183803387).

304304133 is a wasteful number, since it uses less digits than its factorization.

304304133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762696.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 304304133 is about 17444.3152058199. The cubic root of 304304133 is about 672.6192363768.

Adding to 304304133 its reverse (331403403), we get a palindrome (635707536).

The spelling of 304304133 in words is "three hundred four million, three hundred four thousand, one hundred thirty-three".