304242513 has 4 divisors (see below), whose sum is σ = 405656688. Its totient is φ = 202828340.

The previous prime is 304242493. The next prime is 304242539. The reversal of 304242513 is 315242403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 304242513 - 2⁵ = 304242481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (304244513) 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 3 ways as a sum of consecutive naturals, for example, 50707083 + ... + 50707088.

It is an arithmetic number, because the mean of its divisors is an integer number (101414172).

Almost surely, 2^304242513 is an apocalyptic number.

It is an amenable number.

304242513 is a deficient number, since it is larger than the sum of its proper divisors (101414175).

304242513 is a wasteful number, since it uses less digits than its factorization.

304242513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101414174.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 304242513 is about 17442.5489249708. The cubic root of 304242513 is about 672.5738326827.

Adding to 304242513 its reverse (315242403), we get a palindrome (619484916).

The spelling of 304242513 in words is "three hundred four million, two hundred forty-two thousand, five hundred thirteen".