• 594 can be written using four 4's:
594 is nontrivially palindromic in base 5 and base 16.
594 is an undulating number in base 16.
It is a plaindrome in base 8, base 13 and base 15.
It is a nialpdrome in base 3 and base 9.
It is a zygodrome in base 8.
594 is a gapful number since it is divisible by the number (54) formed by its first and last digit.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
594 is a wasteful number, since it uses less digits than its factorization.
594 is an evil number, because the sum of its binary digits is even.
The square root of 594 is about 24.3721152139. The cubic root of 594 is about 8.4061179920.
Subtracting from 594 its sum of digits (18), we obtain a square (576 = 242).
594 divided by its sum of digits (18) gives a palindrome (33).
Subtracting from 594 its product of digits (180), we obtain a palindrome (414).
Adding to 594 its reverse (495), we get a square (1089 = 332).
Subtracting from 594 its reverse (495), we obtain a palindrome (99).
The spelling of 594 in words is "five hundred ninety-four", and thus it is an aban number.