2331440244 has 72 divisors (see below), whose sum is σ = 6784534848. Its totient is φ = 661253760.

The previous prime is 2331440213. The next prime is 2331440257. The reversal of 2331440244 is 4420441332.

It is a happy number.

It is a super-2 number, since 2×2331440244² = 10871227222685559072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 759 + ... + 68289.

Almost surely, 2^2331440244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2331440244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3392267424).

2331440244 is an abundant number, since it is smaller than the sum of its proper divisors (4453094604).

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

2331440244 is a wasteful number, since it uses less digits than its factorization.

2331440244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67685 (or 67680 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 2331440244 is about 48284.9898415646. The cubic root of 2331440244 is about 1325.9936050687.

Adding to 2331440244 its reverse (4420441332), we get a palindrome (6751881576).

The spelling of 2331440244 in words is "two billion, three hundred thirty-one million, four hundred forty thousand, two hundred forty-four".