285526230 has 32 divisors (see below), whose sum is σ = 747560448. Its totient is φ = 69218400.

The previous prime is 285526147. The next prime is 285526247. The reversal of 285526230 is 32625582.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 285526191 and 285526200.

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 15 ways as a sum of consecutive naturals, for example, 432286 + ... + 432945.

It is an arithmetic number, because the mean of its divisors is an integer number (23361264).

Almost surely, 2^285526230 is an apocalyptic number.

285526230 is an abundant number, since it is smaller than the sum of its proper divisors (462034218).

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

285526230 is a wasteful number, since it uses less digits than its factorization.

285526230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865252.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 285526230 is about 16897.5214158764. The cubic root of 285526230 is about 658.4892211447.

The spelling of 285526230 in words is "two hundred eighty-five million, five hundred twenty-six thousand, two hundred thirty".