285788842 has 8 divisors (see below), whose sum is σ = 451245600. Its totient is φ = 135373644.

The previous prime is 285788821. The next prime is 285788849. The reversal of 285788842 is 248887582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 285788842.

It is not an unprimeable number, because it can be changed into a prime (285788849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3760342 + ... + 3760417.

It is an arithmetic number, because the mean of its divisors is an integer number (56405700).

Almost surely, 2^285788842 is an apocalyptic number.

285788842 is a deficient number, since it is larger than the sum of its proper divisors (165456758).

285788842 is a wasteful number, since it uses less digits than its factorization.

285788842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7520780.

The product of its digits is 2293760, while the sum is 52.

The square root of 285788842 is about 16905.2903553888. The cubic root of 285788842 is about 658.6910405268.

The spelling of 285788842 in words is "two hundred eighty-five million, seven hundred eighty-eight thousand, eight hundred forty-two".