285530316 has 24 divisors (see below), whose sum is σ = 669103344. Its totient is φ = 94767360.

The previous prime is 285530237. The next prime is 285530353. The reversal of 285530316 is 613035582.

It is a super-2 number, since 2×285530316² = 163055122710119712, which contains 22 as substring.

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, 48265 + ... + 53856.

It is an arithmetic number, because the mean of its divisors is an integer number (27879306).

Almost surely, 2^285530316 is an apocalyptic number.

It is an amenable number.

285530316 is an abundant number, since it is smaller than the sum of its proper divisors (383573028).

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

285530316 is a wasteful number, since it uses less digits than its factorization.

285530316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102361 (or 102359 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 285530316 is about 16897.6423207500. The cubic root of 285530316 is about 658.4923622152.

Adding to 285530316 its reverse (613035582), we get a palindrome (898565898).

The spelling of 285530316 in words is "two hundred eighty-five million, five hundred thirty thousand, three hundred sixteen".