304240343 has 12 divisors (see below), whose sum is σ = 348955824. Its totient is φ = 264554400.

The previous prime is 304240333. The next prime is 304240361. The reversal of 304240343 is 343042403.

It is a happy number.

It is not a de Polignac number, because 304240343 - 2¹⁶ = 304174807 is a prime.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304240303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51878 + ... + 57443.

It is an arithmetic number, because the mean of its divisors is an integer number (29079652).

Almost surely, 2^304240343 is an apocalyptic number.

304240343 is a deficient number, since it is larger than the sum of its proper divisors (44715481).

304240343 is a wasteful number, since it uses less digits than its factorization.

304240343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109366 (or 109355 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 304240343 is about 17442.4867206485. The cubic root of 304240343 is about 672.5722336418.

Adding to 304240343 its reverse (343042403), we get a palindrome (647282746).

The spelling of 304240343 in words is "three hundred four million, two hundred forty thousand, three hundred forty-three".