Adding to 1040 its reverse (401), we get a palindrome (1441).
It is a tau number, because it is divible by the number of its divisors (20).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
1040 is an undulating number in base 8.
It is a nialpdrome in base 11, base 13, base 14 and base 16.
It is a congruent number.
21040 is an apocalyptic number.
1040 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 1040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1302).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1040 is a wasteful number, since it uses less digits than its factorization.
1040 is an evil number, because the sum of its binary digits is even.
The square root of 1040 is about 32.2490309932. The cubic root of 1040 is about 10.1315940382.
The spelling of 1040 in words is "one thousand, forty", and thus it is an iban number.