285190842 has 8 divisors (see below), whose sum is σ = 570381696. Its totient is φ = 95063612.

The previous prime is 285190811. The next prime is 285190859. The reversal of 285190842 is 248091582.

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

285190842 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 285190842.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23765898 + ... + 23765909.

It is an arithmetic number, because the mean of its divisors is an integer number (71297712).

Almost surely, 2^285190842 is an apocalyptic number.

285190842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

285190842 is a wasteful number, since it uses less digits than its factorization.

285190842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47531812.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 285190842 is about 16887.5943224605. The cubic root of 285190842 is about 658.2312928140.

The spelling of 285190842 in words is "two hundred eighty-five million, one hundred ninety thousand, eight hundred forty-two".