Adding to 40320 its reverse (2304), we get a palindrome (42624).
It is a tau number, because it is divible by the number of its divisors (96).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is a zygodrome in base 8.
It is a congruent number.
It is an unprimeable number.
40320 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
240320 is an apocalyptic number.
40320 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 40320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
40320 is a wasteful number, since it uses less digits than its factorization.
40320 is an evil number, because the sum of its binary digits is even.
The square root of 40320 is about 200.7984063682. The cubic root of 40320 is about 34.2904755293.
The spelling of 40320 in words is "forty thousand, three hundred twenty", and thus it is an iban number.