198082788 has 12 divisors (see below), whose sum is σ = 462193200. Its totient is φ = 66027592.

The previous prime is 198082747. The next prime is 198082813. The reversal of 198082788 is 887280891.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 198082788.

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, 8253438 + ... + 8253461.

It is an arithmetic number, because the mean of its divisors is an integer number (38516100).

Almost surely, 2^198082788 is an apocalyptic number.

It is an amenable number.

198082788 is an abundant number, since it is smaller than the sum of its proper divisors (264110412).

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

198082788 is a wasteful number, since it uses less digits than its factorization.

198082788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16506906 (or 16506904 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 51.

The square root of 198082788 is about 14074.1887155175. The cubic root of 198082788 is about 582.9288906638.

The spelling of 198082788 in words is "one hundred ninety-eight million, eighty-two thousand, seven hundred eighty-eight".