285352686 has 16 divisors (see below), whose sum is σ = 634117200. Its totient is φ = 95117544.

The previous prime is 285352657. The next prime is 285352699. The reversal of 285352686 is 686253582.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2642101 + ... + 2642208.

It is an arithmetic number, because the mean of its divisors is an integer number (39632325).

Almost surely, 2^285352686 is an apocalyptic number.

285352686 is an abundant number, since it is smaller than the sum of its proper divisors (348764514).

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

285352686 is a wasteful number, since it uses less digits than its factorization.

285352686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284320 (or 5284314 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 285352686 is about 16892.3854443356. The cubic root of 285352686 is about 658.3557833004.

The spelling of 285352686 in words is "two hundred eighty-five million, three hundred fifty-two thousand, six hundred eighty-six".