243407198 has 8 divisors (see below), whose sum is σ = 368342208. Its totient is φ = 120626464.

The previous prime is 243407191. The next prime is 243407221. The reversal of 243407198 is 891704342.

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

It is a super-2 number, since 2×243407198² = 118494128076422408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243407191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538286 + ... + 538737.

It is an arithmetic number, because the mean of its divisors is an integer number (46042776).

Almost surely, 2^243407198 is an apocalyptic number.

243407198 is a deficient number, since it is larger than the sum of its proper divisors (124935010).

243407198 is a wasteful number, since it uses less digits than its factorization.

243407198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077138.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 243407198 is about 15601.5126830702. The cubic root of 243407198 is about 624.3735145287.

The spelling of 243407198 in words is "two hundred forty-three million, four hundred seven thousand, one hundred ninety-eight".