285286716 has 144 divisors (see below), whose sum is σ = 855149568. Its totient is φ = 79056000.

The previous prime is 285286699. The next prime is 285286723. The reversal of 285286716 is 617682582.

285286716 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 777165 + ... + 777531.

Almost surely, 2^285286716 is an apocalyptic number.

285286716 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 285286716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427574784).

285286716 is an abundant number, since it is smaller than the sum of its proper divisors (569862852).

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

285286716 is a wasteful number, since it uses less digits than its factorization.

285286716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 547 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 285286716 is about 16890.4326765184. The cubic root of 285286716 is about 658.3050448277.

The spelling of 285286716 in words is "two hundred eighty-five million, two hundred eighty-six thousand, seven hundred sixteen".