286115328 has 100 divisors (see below), whose sum is σ = 854102700. Its totient is φ = 95357952.

The previous prime is 286115317. The next prime is 286115329. The reversal of 286115328 is 823511682.

It is a happy number.

286115328 is a `hidden beast` number, since 2 + 8 + 611 + 5 + 32 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 286115292 and 286115301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286115329) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38023 + ... + 44921.

It is an arithmetic number, because the mean of its divisors is an integer number (8541027).

Almost surely, 2^286115328 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 286115328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427051350).

286115328 is an abundant number, since it is smaller than the sum of its proper divisors (567987372).

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

286115328 is an frugal number, since it uses more digits than its factorization.

286115328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6929 (or 6904 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 286115328 is about 16914.9439254170. The cubic root of 286115328 is about 658.9417752545.

The spelling of 286115328 in words is "two hundred eighty-six million, one hundred fifteen thousand, three hundred twenty-eight".