198001338 has 8 divisors (see below), whose sum is σ = 396002688. Its totient is φ = 66000444.

The previous prime is 198001333. The next prime is 198001343. The reversal of 198001338 is 833100891.

It is an interprime number because it is at equal distance from previous prime (198001333) and next prime (198001343).

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

198001338 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 198001299 and 198001308.

It is not an unprimeable number, because it can be changed into a prime (198001333) 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, 16500106 + ... + 16500117.

It is an arithmetic number, because the mean of its divisors is an integer number (49500336).

Almost surely, 2^198001338 is an apocalyptic number.

198001338 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.

198001338 is a wasteful number, since it uses less digits than its factorization.

198001338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33000228.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 198001338 is about 14071.2948231497. The cubic root of 198001338 is about 582.8489812013.

The spelling of 198001338 in words is "one hundred ninety-eight million, one thousand, three hundred thirty-eight".