Adding to 1380 its reverse (831), we get a triangular number (2211 = T66).
1380 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.
It is a nialpdrome in base 12, base 13 and base 15.
1380 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
1380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1380 is a wasteful number, since it uses less digits than its factorization.
1380 is an odious number, because the sum of its binary digits is odd.
The square root of 1380 is about 37.1483512420. The cubic root of 1380 is about 11.1333628152.
The spelling of 1380 in words is "one thousand, three hundred eighty".