It is a Curzon number.
It is a nialpdrome in base 7.
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 14406.
214406 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 14406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16806).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
14406 is an frugal number, since it uses more digits than its factorization.
14406 is an evil number, because the sum of its binary digits is even.
The square root of 14406 is about 120.0249973964. The cubic root of 14406 is about 24.3321865142.
Multiplying 14406 by its product of nonzero digits (96), we get a square (1382976 = 11762).
Adding to 14406 its reverse (60441), we get a palindrome (74847).
The spelling of 14406 in words is "fourteen thousand, four hundred six".