285255366 has 64 divisors (see below), whose sum is σ = 648953856. Its totient is φ = 82807200.

The previous prime is 285255353. The next prime is 285255389. The reversal of 285255366 is 663552582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218271 + ... + 219573.

It is an arithmetic number, because the mean of its divisors is an integer number (10139904).

Almost surely, 2^285255366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285255366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324476928).

285255366 is an abundant number, since it is smaller than the sum of its proper divisors (363698490).

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

285255366 is a wasteful number, since it uses less digits than its factorization.

285255366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457.

The product of its digits is 432000, while the sum is 42.

The square root of 285255366 is about 16889.5046108523. The cubic root of 285255366 is about 658.2809303515.

The spelling of 285255366 in words is "two hundred eighty-five million, two hundred fifty-five thousand, three hundred sixty-six".