243880234 has 8 divisors (see below), whose sum is σ = 393960420. Its totient is φ = 112560096.

The previous prime is 243880129. The next prime is 243880237. The reversal of 243880234 is 432088342.

It can be written as a sum of positive squares in 2 ways, for example, as 238795209 + 5085025 = 15453^2 + 2255^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 243880234.

It is not an unprimeable number, because it can be changed into a prime (243880237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4689979 + ... + 4690030.

Almost surely, 2^243880234 is an apocalyptic number.

243880234 is a deficient number, since it is larger than the sum of its proper divisors (150080186).

243880234 is a wasteful number, since it uses less digits than its factorization.

243880234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9380024.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 243880234 is about 15616.6652650302. The cubic root of 243880234 is about 624.7777206364. Note that the first 4 decimals are identical.

The spelling of 243880234 in words is "two hundred forty-three million, eight hundred eighty thousand, two hundred thirty-four".