285063930 has 48 divisors (see below), whose sum is σ = 756946944. Its totient is φ = 74398560.

The previous prime is 285063907. The next prime is 285063931. The reversal of 285063930 is 39360582.

285063930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×285063930² = 162522888374089800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (285063931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29466 + ... + 37925.

It is an arithmetic number, because the mean of its divisors is an integer number (15769728).

Almost surely, 2^285063930 is an apocalyptic number.

285063930 is an abundant number, since it is smaller than the sum of its proper divisors (471883014).

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

285063930 is a wasteful number, since it uses less digits than its factorization.

285063930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67451 (or 67448 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 285063930 is about 16883.8363531515. The cubic root of 285063930 is about 658.1336390887.

The spelling of 285063930 in words is "two hundred eighty-five million, sixty-three thousand, nine hundred thirty".