198201885 has 16 divisors (see below), whose sum is σ = 362426496. Its totient is φ = 90606528.

The previous prime is 198201881. The next prime is 198201911. The reversal of 198201885 is 588102891.

It is not a de Polignac number, because 198201885 - 2² = 198201881 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198201881) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 943714 + ... + 943923.

It is an arithmetic number, because the mean of its divisors is an integer number (22651656).

Almost surely, 2^198201885 is an apocalyptic number.

198201885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

198201885 is a deficient number, since it is larger than the sum of its proper divisors (164224611).

198201885 is a wasteful number, since it uses less digits than its factorization.

198201885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887652.

The product of its (nonzero) digits is 46080, while the sum is 42.

The square root of 198201885 is about 14078.4191228987. The cubic root of 198201885 is about 583.0456956515.

The spelling of 198201885 in words is "one hundred ninety-eight million, two hundred one thousand, eight hundred eighty-five".