285042036 has 48 divisors (see below), whose sum is σ = 695721600. Its totient is φ = 90659712.

The previous prime is 285042031. The next prime is 285042061. The reversal of 285042036 is 630240582.

It is a junction number, because it is equal to n+sod(n) for n = 285041994 and 285042012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285042031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139470 + ... + 141498.

It is an arithmetic number, because the mean of its divisors is an integer number (14494200).

Almost surely, 2^285042036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285042036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347860800).

285042036 is an abundant number, since it is smaller than the sum of its proper divisors (410679564).

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

285042036 is a wasteful number, since it uses less digits than its factorization.

285042036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568 (or 2566 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 285042036 is about 16883.1879691011. The cubic root of 285042036 is about 658.1167895972.

The spelling of 285042036 in words is "two hundred eighty-five million, forty-two thousand, thirty-six".