285830500 has 48 divisors (see below), whose sum is σ = 637588224. Its totient is φ = 111890400.

The previous prime is 285830497. The next prime is 285830521. The reversal of 285830500 is 5038582.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17419 + ... + 29581.

It is an arithmetic number, because the mean of its divisors is an integer number (13283088).

Almost surely, 2^285830500 is an apocalyptic number.

285830500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285830500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318794112).

285830500 is an abundant number, since it is smaller than the sum of its proper divisors (351757724).

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

285830500 is a wasteful number, since it uses less digits than its factorization.

285830500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12229 (or 12217 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 285830500 is about 16906.5224100050. The cubic root of 285830500 is about 658.7230436636.

The spelling of 285830500 in words is "two hundred eighty-five million, eight hundred thirty thousand, five hundred".