It is a happy number.
10920 is nontrivially palindromic in base 11.
It is a nialpdrome in base 4.
It is a congruent number.
It is an unprimeable number.
10920 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
210920 is an apocalyptic number.
10920 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 10920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10920 is a wasteful number, since it uses less digits than its factorization.
10920 is an evil number, because the sum of its binary digits is even.
The square root of 10920 is about 104.4988038209. The cubic root of 10920 is about 22.1857550039.
The spelling of 10920 in words is "ten thousand, nine hundred twenty".