286089216 has 112 divisors (see below), whose sum is σ = 872361984. Its totient is φ = 81690624.

The previous prime is 286089179. The next prime is 286089227. The reversal of 286089216 is 612980682.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×286089216² = 163694079022989312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171201 + ... + 172863.

Almost surely, 2^286089216 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 286089216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436180992).

286089216 is an abundant number, since it is smaller than the sum of its proper divisors (586272768).

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

286089216 is an equidigital number, since it uses as much as digits as its factorization.

286089216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 286089216 is about 16914.1720459501. The cubic root of 286089216 is about 658.9217287798.

The spelling of 286089216 in words is "two hundred eighty-six million, eighty-nine thousand, two hundred sixteen".