Adding to 12404 its reverse (40421), we get a palindrome (52825).
12404 is an admirable number.
It is a nialpdrome in base 7.
It is a congruent number.
212404 is an apocalyptic number.
12404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
12404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12404 is a wasteful number, since it uses less digits than its factorization.
12404 is an evil number, because the sum of its binary digits is even.
The square root of 12404 is about 111.3732463386. The cubic root of 12404 is about 23.1483790831.
The spelling of 12404 in words is "twelve thousand, four hundred four", and thus it is an iban number.