198000234 has 32 divisors (see below), whose sum is σ = 450737280. Its totient is φ = 64389600.

The previous prime is 198000233. The next prime is 198000259. The reversal of 198000234 is 432000891.

It is a Harshad number since it is a multiple of its sum of digits (27).

198000234 is a modest number, since divided by 234 gives 198 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 198000198 and 198000207.

It is not an unprimeable number, because it can be changed into a prime (198000233) 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 15 ways as a sum of consecutive naturals, for example, 42502 + ... + 46929.

It is an arithmetic number, because the mean of its divisors is an integer number (14085540).

Almost surely, 2^198000234 is an apocalyptic number.

198000234 is an abundant number, since it is smaller than the sum of its proper divisors (252737046).

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

198000234 is a wasteful number, since it uses less digits than its factorization.

198000234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89483 (or 89477 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 198000234 is about 14071.2555942958. The cubic root of 198000234 is about 582.8478979317.

The spelling of 198000234 in words is "one hundred ninety-eight million, two hundred thirty-four", and thus it is an aban number.