198434374 has 8 divisors (see below), whose sum is σ = 298340280. Its totient is φ = 98987616.

The previous prime is 198434323. The next prime is 198434377. The reversal of 198434374 is 473434891.

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 198434374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198434377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113704 + ... + 115435.

It is an arithmetic number, because the mean of its divisors is an integer number (37292535).

Almost surely, 2^198434374 is an apocalyptic number.

198434374 is a deficient number, since it is larger than the sum of its proper divisors (99905906).

198434374 is a wasteful number, since it uses less digits than its factorization.

198434374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229574.

The product of its digits is 290304, while the sum is 43.

The square root of 198434374 is about 14086.6736314859. The cubic root of 198434374 is about 583.2735756654.

The spelling of 198434374 in words is "one hundred ninety-eight million, four hundred thirty-four thousand, three hundred seventy-four".