243298869 has 16 divisors (see below), whose sum is σ = 354639360. Its totient is φ = 147141360.

The previous prime is 243298843. The next prime is 243298871. The reversal of 243298869 is 968892342.

It is not a de Polignac number, because 243298869 - 2¹² = 243294773 is a prime.

It is a super-2 number, since 2×243298869² = 118388679313358322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243298829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8502 + ... + 23640.

It is an arithmetic number, because the mean of its divisors is an integer number (22164960).

Almost surely, 2^243298869 is an apocalyptic number.

It is an amenable number.

243298869 is a deficient number, since it is larger than the sum of its proper divisors (111340491).

243298869 is a wasteful number, since it uses less digits than its factorization.

243298869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15640.

The product of its digits is 1492992, while the sum is 51.

The square root of 243298869 is about 15598.0405500178. The cubic root of 243298869 is about 624.2808744375.

The spelling of 243298869 in words is "two hundred forty-three million, two hundred ninety-eight thousand, eight hundred sixty-nine".