2331404340 has 24 divisors (see below), whose sum is σ = 6527932320. Its totient is φ = 621707808.

The previous prime is 2331404303. The next prime is 2331404359. The reversal of 2331404340 is 434041332.

It is a self number, because there is not a number n which added to its sum of digits gives 2331404340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19428310 + ... + 19428429.

It is an arithmetic number, because the mean of its divisors is an integer number (271997180).

Almost surely, 2^2331404340 is an apocalyptic number.

2331404340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2331404340 is an abundant number, since it is smaller than the sum of its proper divisors (4196527980).

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

2331404340 is a wasteful number, since it uses less digits than its factorization.

2331404340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38856751 (or 38856749 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 2331404340 is about 48284.6180475729. The cubic root of 2331404340 is about 1325.9867983007.

Adding to 2331404340 its reverse (434041332), we get a palindrome (2765445672).

The spelling of 2331404340 in words is "two billion, three hundred thirty-one million, four hundred four thousand, three hundred forty".