2331440532 has 72 divisors (see below), whose sum is σ = 6019453440. Its totient is φ = 760593600.

The previous prime is 2331440483. The next prime is 2331440539. The reversal of 2331440532 is 2350441332.

It is a super-2 number, since 2×2331440532² = 10871229908504886048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2331440496 and 2331440505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331440539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 912657 + ... + 915207.

It is an arithmetic number, because the mean of its divisors is an integer number (83603520).

Almost surely, 2^2331440532 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 2331440532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3009726720).

2331440532 is an abundant number, since it is smaller than the sum of its proper divisors (3688012908).

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

2331440532 is a wasteful number, since it uses less digits than its factorization.

2331440532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093 (or 3088 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 2331440532 is about 48284.9928238578. The cubic root of 2331440532 is about 1325.9936596682.

Adding to 2331440532 its reverse (2350441332), we get a palindrome (4681881864).

The spelling of 2331440532 in words is "two billion, three hundred thirty-one million, four hundred forty thousand, five hundred thirty-two".