285086842 has 16 divisors (see below), whose sum is σ = 433477152. Its totient is φ = 140605200.

The previous prime is 285086839. The next prime is 285086843. The reversal of 285086842 is 248680582.

It is not an unprimeable number, because it can be changed into a prime (285086843) 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, 54673 + ... + 59659.

It is an arithmetic number, because the mean of its divisors is an integer number (27092322).

Almost surely, 2^285086842 is an apocalyptic number.

285086842 is a deficient number, since it is larger than the sum of its proper divisors (148390310).

285086842 is a wasteful number, since it uses less digits than its factorization.

285086842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373.

The product of its (nonzero) digits is 245760, while the sum is 43.

The square root of 285086842 is about 16884.5148582955. The cubic root of 285086842 is about 658.1512711031.

The spelling of 285086842 in words is "two hundred eighty-five million, eighty-six thousand, eight hundred forty-two".