Adding to 311040 its reverse (40113), we get a palindrome (351153).
It is a Jordan-Polya number, since it can be written as 6! ⋅ (3!)3 ⋅ 2!.
It is a tau number, because it is divible by the number of its divisors (108).
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 311040.
2311040 is an apocalyptic number.
311040 is a gapful number since it is divisible by the number (30) 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 311040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558012).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
311040 is an frugal number, since it uses more digits than its factorization.
311040 is an evil number, because the sum of its binary digits is even.
The square root of 311040 is about 557.7096018539. The cubic root of 311040 is about 67.7545940794.
The spelling of 311040 in words is "three hundred eleven thousand, forty", and thus it is an iban number.