Adding to 42320 its reverse (2324), we get a palindrome (44644).
42320 is nontrivially palindromic in base 3.
It is a plaindrome in base 14.
It is a nialpdrome in base 4 and base 16.
It is a zygodrome in base 4.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42320.
42320 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
242320 is an apocalyptic number.
42320 is a gapful number since it is divisible by the number (40) 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 42320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51429).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42320 is a wasteful number, since it uses less digits than its factorization.
42320 is an evil number, because the sum of its binary digits is even.
The square root of 42320 is about 205.7182539300. The cubic root of 42320 is about 34.8483232316.
The spelling of 42320 in words is "forty-two thousand, three hundred twenty", and thus it is an iban number.