285303030 has 32 divisors (see below), whose sum is σ = 687585888. Its totient is φ = 75763200.

The previous prime is 285303001. The next prime is 285303037. The reversal of 285303030 is 30303582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285303037) 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 15 ways as a sum of consecutive naturals, for example, 12501 + ... + 26960.

It is an arithmetic number, because the mean of its divisors is an integer number (21487059).

Almost surely, 2^285303030 is an apocalyptic number.

285303030 is an abundant number, since it is smaller than the sum of its proper divisors (402282858).

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

285303030 is a wasteful number, since it uses less digits than its factorization.

285303030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39712.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 285303030 is about 16890.9156057332. The cubic root of 285303030 is about 658.3175928868.

The spelling of 285303030 in words is "two hundred eighty-five million, three hundred three thousand, thirty".