3816 divided by its sum of digits (18) gives a palindrome (212).
Adding to 3816 its reverse (6183), we get a palindrome (9999).
It is a tau number, because it is divible by the number of its divisors (24).
It is a nude number because it is divisible by every one of its digits.
It is an alternating number because its digits alternate between odd and even.
It is a plaindrome in base 14.
It is a nialpdrome in base 9 and base 16.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 3816.
It is an unprimeable number.
3816 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
23816 is an apocalyptic number.
3816 is a gapful number since it is divisible by the number (36) formed by its first and last digit.
3816 is the 36-th octagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 3816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5265).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3816 is a wasteful number, since it uses less digits than its factorization.
3816 is an odious number, because the sum of its binary digits is odd.
The square root of 3816 is about 61.7737808459. The cubic root of 3816 is about 15.6267784642.
The spelling of 3816 in words is "three thousand, eight hundred sixteen".