198485634 has 8 divisors (see below), whose sum is σ = 396971280. Its totient is φ = 66161876.

The previous prime is 198485629. The next prime is 198485641. The reversal of 198485634 is 436584891.

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

198485634 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

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, 16540464 + ... + 16540475.

It is an arithmetic number, because the mean of its divisors is an integer number (49621410).

Almost surely, 2^198485634 is an apocalyptic number.

198485634 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.

198485634 is a wasteful number, since it uses less digits than its factorization.

198485634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33080944.

The product of its digits is 829440, while the sum is 48.

The square root of 198485634 is about 14088.4929641179. The cubic root of 198485634 is about 583.3237955085.

The spelling of 198485634 in words is "one hundred ninety-eight million, four hundred eighty-five thousand, six hundred thirty-four".