243808268 has 24 divisors (see below), whose sum is σ = 474238800. Its totient is φ = 108729920.

The previous prime is 243808241. The next prime is 243808289. The reversal of 243808268 is 862808342.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49943 + ... + 54606.

It is an arithmetic number, because the mean of its divisors is an integer number (19759950).

Almost surely, 2^243808268 is an apocalyptic number.

It is an amenable number.

243808268 is a deficient number, since it is larger than the sum of its proper divisors (230430532).

243808268 is a wasteful number, since it uses less digits than its factorization.

243808268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104617 (or 104615 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 243808268 is about 15614.3609539424. The cubic root of 243808268 is about 624.7162598993.

The spelling of 243808268 in words is "two hundred forty-three million, eight hundred eight thousand, two hundred sixty-eight".