It is an Ulam number.
It is a Curzon number.
It is a plaindrome in base 11.
It is a nialpdrome in base 13.
It is a congruent number.
1770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1770 is a wasteful number, since it uses less digits than its factorization.
1770 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 69.
The square root of 1770 is about 42.0713679359. The cubic root of 1770 is about 12.0964450090.
Subtracting from 1770 its reverse (771), we obtain a palindrome (999).
The spelling of 1770 in words is "one thousand, seven hundred seventy", and thus it is an iban number.