It is a tau number, because it is divible by the number of its divisors (36).
It is a nialpdrome in base 15.
It is a congruent number.
It is an unprimeable number.
235820 is an apocalyptic number.
35820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
35820 is the 120-th heptagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 35820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
35820 is a wasteful number, since it uses less digits than its factorization.
35820 is an odious number, because the sum of its binary digits is odd.
The square root of 35820 is about 189.2617235471. The cubic root of 35820 is about 32.9641483923.
The spelling of 35820 in words is "thirty-five thousand, eight hundred twenty".