It is a tau number, because it is divible by the number of its divisors (24).
It is a plaindrome in base 13 and base 14.
It is a nialpdrome in base 9.
It is an unprimeable number.
26408 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 6408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8775).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6408 is a wasteful number, since it uses less digits than its factorization.
6408 is an evil number, because the sum of its binary digits is even.
The square root of 6408 is about 80.0499843848. The cubic root of 6408 is about 18.5740880948.
Subtracting from 6408 its product of nonzero digits (192), we obtain a triangular number (6216 = T111).
The spelling of 6408 in words is "six thousand, four hundred eight".