285185194 has 24 divisors (see below), whose sum is σ = 499292640. Its totient is φ = 121811256.

The previous prime is 285185191. The next prime is 285185207. The reversal of 285185194 is 491581582.

It is a self number, because there is not a number n which added to its sum of digits gives 285185194.

It is not an unprimeable number, because it can be changed into a prime (285185191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25347 + ... + 34825.

It is an arithmetic number, because the mean of its divisors is an integer number (20803860).

Almost surely, 2^285185194 is an apocalyptic number.

285185194 is a deficient number, since it is larger than the sum of its proper divisors (214107446).

285185194 is a wasteful number, since it uses less digits than its factorization.

285185194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9802 (or 9795 counting only the distinct ones).

The product of its digits is 115200, while the sum is 43.

The square root of 285185194 is about 16887.4270982882. The cubic root of 285185194 is about 658.2269475192.

The spelling of 285185194 in words is "two hundred eighty-five million, one hundred eighty-five thousand, one hundred ninety-four".