285118090 has 16 divisors (see below), whose sum is σ = 521912160. Its totient is φ = 112114000.

The previous prime is 285118073. The next prime is 285118091. The reversal of 285118090 is 90811582.

It is not an unprimeable number, because it can be changed into a prime (285118091) 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, 241036 + ... + 242215.

It is an arithmetic number, because the mean of its divisors is an integer number (32619510).

Almost surely, 2^285118090 is an apocalyptic number.

285118090 is a deficient number, since it is larger than the sum of its proper divisors (236794070).

285118090 is a wasteful number, since it uses less digits than its factorization.

285118090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483317.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 285118090 is about 16885.4401778574. The cubic root of 285118090 is about 658.1753165944.

The spelling of 285118090 in words is "two hundred eighty-five million, one hundred eighteen thousand, ninety".