198065442 has 8 divisors (see below), whose sum is σ = 396130896. Its totient is φ = 66021812.

The previous prime is 198065437. The next prime is 198065449. The reversal of 198065442 is 244560891.

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

198065442 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 198065442.

It is not an unprimeable number, because it can be changed into a prime (198065449) 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, 16505448 + ... + 16505459.

It is an arithmetic number, because the mean of its divisors is an integer number (49516362).

Almost surely, 2^198065442 is an apocalyptic number.

198065442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

198065442 is a wasteful number, since it uses less digits than its factorization.

198065442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33010912.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 198065442 is about 14073.5724675720. The cubic root of 198065442 is about 582.9118745804.

The spelling of 198065442 in words is "one hundred ninety-eight million, sixty-five thousand, four hundred forty-two".