1836 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.
It is an Ulam number.
It is a d-powerful number, because it can be written as 1 + 33 + 83 + 64 .
It is an alternating number because its digits alternate between odd and even.
1836 is a Rhonda number in base 8.
It is a nialpdrome in base 14.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1836 is a wasteful number, since it uses less digits than its factorization.
1836 is an evil number, because the sum of its binary digits is even.
The square root of 1836 is about 42.8485705713. The cubic root of 1836 is about 12.2449653058.
The spelling of 1836 in words is "one thousand, eight hundred thirty-six".