243304316 has 12 divisors (see below), whose sum is σ = 440464920. Its totient is φ = 117457200.

The previous prime is 243304309. The next prime is 243304333. The reversal of 243304316 is 613403342.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 1048610 + ... + 1048841.

It is an arithmetic number, because the mean of its divisors is an integer number (36705410).

Almost surely, 2^243304316 is an apocalyptic number.

It is an amenable number.

243304316 is a deficient number, since it is larger than the sum of its proper divisors (197160604).

243304316 is a wasteful number, since it uses less digits than its factorization.

243304316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097484 (or 2097482 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 243304316 is about 15598.2151543053. The cubic root of 243304316 is about 624.2855332241.

Adding to 243304316 its reverse (613403342), we get a palindrome (856707658).

The spelling of 243304316 in words is "two hundred forty-three million, three hundred four thousand, three hundred sixteen".