198285286 has 4 divisors (see below), whose sum is σ = 297427932. Its totient is φ = 99142642.

The previous prime is 198285247. The next prime is 198285289. The reversal of 198285286 is 682582891.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198285289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49571320 + ... + 49571323.

It is an arithmetic number, because the mean of its divisors is an integer number (74356983).

Almost surely, 2^198285286 is an apocalyptic number.

198285286 is a deficient number, since it is larger than the sum of its proper divisors (99142646).

198285286 is an equidigital number, since it uses as much as digits as its factorization.

198285286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99142645.

The product of its digits is 552960, while the sum is 49.

The square root of 198285286 is about 14081.3808271774. The cubic root of 198285286 is about 583.1274637523.

The spelling of 198285286 in words is "one hundred ninety-eight million, two hundred eighty-five thousand, two hundred eighty-six".