• 450 can be written using four 4's:
450 is nontrivially palindromic in base 14.
450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
450 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.
It is a tau number, because it is divible by the number of its divisors (18).
It is an ABA number since it can be written as A⋅BA, here for A=2, B=15.
It is an alternating number because its digits alternate between even and odd.
450 is an undulating number in base 7 and base 14.
It is a plaindrome in base 11 and base 13.
It is a nialpdrome in base 5, base 9 and base 15.
It is a zygodrome in base 5.
It is a practical number, because each smaller number is the sum of distinct divisors of 450
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
450 is a wasteful number, since it uses less digits than its factorization.
450 is an evil number, because the sum of its binary digits is even.
The square root of 450 is about 21.2132034356. The cubic root of 450 is about 7.6630943239.
The spelling of 450 in words is "four hundred fifty", and thus it is an aban number.