285002685 has 128 divisors (see below), whose sum is σ = 588349440. Its totient is φ = 129600000.

The previous prime is 285002651. The next prime is 285002687. The reversal of 285002685 is 586200582.

It is not a de Polignac number, because 285002685 - 2⁶ = 285002621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285002687) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1887360 + ... + 1887510.

It is an arithmetic number, because the mean of its divisors is an integer number (4596480).

Almost surely, 2^285002685 is an apocalyptic number.

It is an amenable number.

285002685 is an abundant number, since it is smaller than the sum of its proper divisors (303346755).

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

285002685 is a wasteful number, since it uses less digits than its factorization.

285002685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 285002685 is about 16882.0225387837. The cubic root of 285002685 is about 658.0865031337.

The spelling of 285002685 in words is "two hundred eighty-five million, two thousand, six hundred eighty-five".