304000243 has 4 divisors (see below), whose sum is σ = 314483040. Its totient is φ = 293517448.

The previous prime is 304000217. The next prime is 304000253. The reversal of 304000243 is 342000403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 304000243 - 2⁵ = 304000211 is a prime.

It is a super-2 number, since 2×304000243² = 184832295488118098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304000253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5241355 + ... + 5241412.

It is an arithmetic number, because the mean of its divisors is an integer number (78620760).

Almost surely, 2^304000243 is an apocalyptic number.

304000243 is a deficient number, since it is larger than the sum of its proper divisors (10482797).

304000243 is a wasteful number, since it uses less digits than its factorization.

304000243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10482796.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 304000243 is about 17435.6027426642. The cubic root of 304000243 is about 672.3952605176.

Adding to 304000243 its reverse (342000403), we get a palindrome (646000646).

The spelling of 304000243 in words is "three hundred four million, two hundred forty-three", and thus it is an aban number.