285820302 has 8 divisors (see below), whose sum is σ = 571640616. Its totient is φ = 95273432.

The previous prime is 285820289. The next prime is 285820309. The reversal of 285820302 is 203028582.

285820302 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

285820302 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 285820302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285820309) 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, 23818353 + ... + 23818364.

It is an arithmetic number, because the mean of its divisors is an integer number (71455077).

Almost surely, 2^285820302 is an apocalyptic number.

285820302 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.

285820302 is a wasteful number, since it uses less digits than its factorization.

285820302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47636722.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 285820302 is about 16906.2208077382. The cubic root of 285820302 is about 658.7152094898.

Adding to 285820302 its reverse (203028582), we get a palindrome (488848884).

The spelling of 285820302 in words is "two hundred eighty-five million, eight hundred twenty thousand, three hundred two".