Adding to 13340 its reverse (4331), we get a palindrome (17671).
Subtracting from 13340 its reverse (4331), we obtain a palindrome (9009).
13340 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.
13340 is an undulating number in base 12.
It is a congruent number.
It is an unprimeable number.
213340 is an apocalyptic number.
13340 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 13340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13340 is a wasteful number, since it uses less digits than its factorization.
13340 is an evil number, because the sum of its binary digits is even.
The square root of 13340 is about 115.4989177438. The cubic root of 13340 is about 23.7165734751.
The spelling of 13340 in words is "thirteen thousand, three hundred forty".