285540600 has 96 divisors (see below), whose sum is σ = 898513920. Its totient is φ = 74997120.

The previous prime is 285540571. The next prime is 285540601. The reversal of 285540600 is 6045582.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285540601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36649 + ... + 43751.

It is an arithmetic number, because the mean of its divisors is an integer number (9359520).

Almost surely, 2^285540600 is an apocalyptic number.

285540600 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 285540600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449256960).

285540600 is an abundant number, since it is smaller than the sum of its proper divisors (612973320).

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

285540600 is a wasteful number, since it uses less digits than its factorization.

285540600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7189 (or 7180 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 285540600 is about 16897.9466208176. The cubic root of 285540600 is about 658.5002678021.

The spelling of 285540600 in words is "two hundred eighty-five million, five hundred forty thousand, six hundred".