285867036 has 384 divisors, whose sum is σ = 1016064000. Its totient is φ = 67350528.

The previous prime is 285867017. The next prime is 285867059. The reversal of 285867036 is 630768582.

It is a junction number, because it is equal to n+sod(n) for n = 285866982 and 285867000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4845175 + ... + 4845233.

It is an arithmetic number, because the mean of its divisors is an integer number (2646000).

Almost surely, 2^285867036 is an apocalyptic number.

285867036 is a gapful number since it is divisible by the number (26) 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 285867036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508032000).

285867036 is an abundant number, since it is smaller than the sum of its proper divisors (730196964).

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

285867036 is a wasteful number, since it uses less digits than its factorization.

285867036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 285867036 is about 16907.6029052021. The cubic root of 285867036 is about 658.7511093409.

The spelling of 285867036 in words is "two hundred eighty-five million, eight hundred sixty-seven thousand, thirty-six".