2331340040 has 64 divisors (see below), whose sum is σ = 5356713600. Its totient is φ = 912941568.

The previous prime is 2331339979. The next prime is 2331340043. The reversal of 2331340040 is 400431332.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2331339994 and 2331340021.

It is not an unprimeable number, because it can be changed into a prime (2331340043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444956 + ... + 450164.

It is an arithmetic number, because the mean of its divisors is an integer number (83698650).

Almost surely, 2^2331340040 is an apocalyptic number.

2331340040 is a gapful number since it is divisible by the number (20) 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 2331340040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2678356800).

2331340040 is an abundant number, since it is smaller than the sum of its proper divisors (3025373560).

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

2331340040 is a wasteful number, since it uses less digits than its factorization.

2331340040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5454 (or 5450 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2331340040 is about 48283.9521994627. The cubic root of 2331340040 is about 1325.9746079749.

Adding to 2331340040 its reverse (400431332), we get a palindrome (2731771372).

The spelling of 2331340040 in words is "two billion, three hundred thirty-one million, three hundred forty thousand, forty".