331140 has 24 divisors (see below), whose sum is σ = 927360. Its totient is φ = 88288.

The previous prime is 331127. The next prime is 331141. The reversal of 331140 is 41133.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 331140.

It is not an unprimeable number, because it can be changed into a prime (331141) by changing a digit.

331140 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2700 + ... + 2819.

It is an arithmetic number, because the mean of its divisors is an integer number (38640).

2³³¹¹⁴⁰ is an apocalyptic number.

331140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331140 is an abundant number, since it is smaller than the sum of its proper divisors (596220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331140 is a wasteful number, since it uses less digits than its factorization.

331140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5531 (or 5529 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 331140 is about 575.4476518329. The cubic root of 331140 is about 69.1837154148.

Adding to 331140 its reverse (41133), we get a palindrome (372273).

The spelling of 331140 in words is "three hundred thirty-one thousand, one hundred forty".