243268895 has 16 divisors (see below), whose sum is σ = 317452608. Its totient is φ = 178214400.

The previous prime is 243268871. The next prime is 243268939. The reversal of 243268895 is 598862342.

It is a de Polignac number, because none of the positive numbers 2^k-243268895 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35531 + ... + 41820.

It is an arithmetic number, because the mean of its divisors is an integer number (19840788).

Almost surely, 2^243268895 is an apocalyptic number.

243268895 is a deficient number, since it is larger than the sum of its proper divisors (74183713).

243268895 is a wasteful number, since it uses less digits than its factorization.

243268895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77410.

The product of its digits is 829440, while the sum is 47.

The square root of 243268895 is about 15597.0796946095. The cubic root of 243268895 is about 624.2552366098.

The spelling of 243268895 in words is "two hundred forty-three million, two hundred sixty-eight thousand, eight hundred ninety-five".