Adding to 13400 its reverse (431), we get a palindrome (13831).
It is a plaindrome in base 16.
It is a congruent number.
It is an unprimeable number.
213400 is an apocalyptic number.
13400 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 13400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15810).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13400 is a wasteful number, since it uses less digits than its factorization.
13400 is an evil number, because the sum of its binary digits is even.
The square root of 13400 is about 115.7583690279. The cubic root of 13400 is about 23.7520773806.
The spelling of 13400 in words is "thirteen thousand, four hundred".