Adding to 3450 its reverse (543), we get a palindrome (3993).
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
3450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 3450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4464).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3450 is a wasteful number, since it uses less digits than its factorization.
3450 is an evil number, because the sum of its binary digits is even.
The square root of 3450 is about 58.7367006224. The cubic root of 3450 is about 15.1102980788.
The spelling of 3450 in words is "three thousand, four hundred fifty".