285271242 has 16 divisors (see below), whose sum is σ = 571130112. Its totient is φ = 94992480.

The previous prime is 285271241. The next prime is 285271253. The reversal of 285271242 is 242172582.

It is not an unprimeable number, because it can be changed into a prime (285271241) 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, 18043 + ... + 29934.

It is an arithmetic number, because the mean of its divisors is an integer number (35695632).

Almost surely, 2^285271242 is an apocalyptic number.

285271242 is an abundant number, since it is smaller than the sum of its proper divisors (285858870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285271242 is a wasteful number, since it uses less digits than its factorization.

285271242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48973.

The product of its digits is 17920, while the sum is 33.

The square root of 285271242 is about 16889.9746003361. The cubic root of 285271242 is about 658.2931424199.

The spelling of 285271242 in words is "two hundred eighty-five million, two hundred seventy-one thousand, two hundred forty-two".