285868198 has 16 divisors (see below), whose sum is σ = 534610944. Its totient is φ = 111377160.

The previous prime is 285868169. The next prime is 285868199. The reversal of 285868198 is 891868582.

285868198 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285868199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927990 + ... + 928297.

It is an arithmetic number, because the mean of its divisors is an integer number (33413184).

Almost surely, 2^285868198 is an apocalyptic number.

285868198 is a deficient number, since it is larger than the sum of its proper divisors (248742746).

285868198 is a wasteful number, since it uses less digits than its factorization.

285868198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856307.

The product of its digits is 2211840, while the sum is 55.

The square root of 285868198 is about 16907.6372684063. The cubic root of 285868198 is about 658.7520019095.

The spelling of 285868198 in words is "two hundred eighty-five million, eight hundred sixty-eight thousand, one hundred ninety-eight".