It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is an unprimeable number.
140040 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2140040 is an apocalyptic number.
140040 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 140040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228150).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
140040 is a wasteful number, since it uses less digits than its factorization.
140040 is an odious number, because the sum of its binary digits is odd.
The square root of 140040 is about 374.2191871083. The cubic root of 140040 is about 51.9298857801.
Adding to 140040 its reverse (40041), we get a palindrome (180081).
Subtracting from 140040 its reverse (40041), we obtain a palindrome (99999).
The spelling of 140040 in words is "one hundred forty thousand, forty", and thus it is an iban number.