Multipling 288369 by its sum of digits (36), we get a square (10381284 = 32222).
Multipling 288369 by its product of digits (20736), we get a square (5979619584 = 773282).
The square root of 288369 is 537.
It is a tau number, because it is divible by the number of its divisors (9).
It is a Duffinian number.
It is a Curzon number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 288369.
288369 is a Friedman number, since it can be written as (9+8*6*(8+3))^2, using all its digits and the basic arithmetic operations.
2288369 is an apocalyptic number.
288369 is the 537-th square number.
288369 is the 269-th centered octagonal number.
It is an amenable number.
288369 is an equidigital number, since it uses as much as digits as its factorization.
288369 is an odious number, because the sum of its binary digits is odd.
The cubic root of 288369 is about 66.0667369029.
The spelling of 288369 in words is "two hundred eighty-eight thousand, three hundred sixty-nine".