Adding to 1400 its reverse (41), we get a palindrome (1441).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
1400 is an undulating number in base 7.
It is a plaindrome in base 16.
It is a nialpdrome in base 5, base 12 and base 14.
It is a congruent number.
1400 is a gapful number since it is divisible by the number (10) 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 1400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1400 is a wasteful number, since it uses less digits than its factorization.
1400 is an evil number, because the sum of its binary digits is even.
The square root of 1400 is about 37.4165738677. The cubic root of 1400 is about 11.1868894208.
The spelling of 1400 in words is "one thousand, four hundred", and thus it is an iban number.