It is a congruent number.
211004 is an apocalyptic number.
11004 is a gapful number since it is divisible by the number (14) 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 11004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14784).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11004 is a wasteful number, since it uses less digits than its factorization.
11004 is an odious number, because the sum of its binary digits is odd.
The square root of 11004 is about 104.8999523355. The cubic root of 11004 is about 22.2424963124.
Adding to 11004 its reverse (40011), we get a palindrome (51015).
The spelling of 11004 in words is "eleven thousand, four", and thus it is an iban number.