Adding to 3400 its reverse (43), we get a palindrome (3443).
3400 is an undulating number in base 13.
It is a plaindrome in base 14.
It is a nialpdrome in base 8.
It is a congruent number.
3400 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
23400 is an apocalyptic number.
3400 is the 34-th octagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 3400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4185).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3400 is a wasteful number, since it uses less digits than its factorization.
3400 is an odious number, because the sum of its binary digits is odd.
The square root of 3400 is about 58.3095189485. The cubic root of 3400 is about 15.0369459620.
The spelling of 3400 in words is "three thousand, four hundred", and thus it is an iban number.