243030198 has 16 divisors (see below), whose sum is σ = 514652400. Its totient is φ = 76244736.

The previous prime is 243030187. The next prime is 243030223. The reversal of 243030198 is 891030342.

It is a Curzon number.

It is a congruent number.

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, 1191223 + ... + 1191426.

It is an arithmetic number, because the mean of its divisors is an integer number (32165775).

Almost surely, 2^243030198 is an apocalyptic number.

243030198 is an abundant number, since it is smaller than the sum of its proper divisors (271622202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243030198 is a wasteful number, since it uses less digits than its factorization.

243030198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382671.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 243030198 is about 15589.4258393310. The cubic root of 243030198 is about 624.0509953804.

The spelling of 243030198 in words is "two hundred forty-three million, thirty thousand, one hundred ninety-eight".