2331444040 has 64 divisors (see below), whose sum is σ = 5332158720. Its totient is φ = 917280000.

The previous prime is 2331444023. The next prime is 2331444109. The reversal of 2331444040 is 404441332.

It is a junction number, because it is equal to n+sod(n) for n = 2331443996 and 2331444014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1791390 + ... + 1792690.

It is an arithmetic number, because the mean of its divisors is an integer number (83314980).

Almost surely, 2^2331444040 is an apocalyptic number.

2331444040 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 2331444040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2666079360).

2331444040 is an abundant number, since it is smaller than the sum of its proper divisors (3000714680).

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

2331444040 is a wasteful number, since it uses less digits than its factorization.

2331444040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2331444040 is about 48285.0291498307. The cubic root of 2331444040 is about 1325.9943247196.

Adding to 2331444040 its reverse (404441332), we get a palindrome (2735885372).

The spelling of 2331444040 in words is "two billion, three hundred thirty-one million, four hundred forty-four thousand, forty".