2331235540 has 48 divisors (see below), whose sum is σ = 5059232640. Its totient is φ = 901756800.

The previous prime is 2331235537. The next prime is 2331235547. The reversal of 2331235540 is 455321332.

It is a junction number, because it is equal to n+sod(n) for n = 2331235499 and 2331235508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331235547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73441 + ... + 100279.

It is an arithmetic number, because the mean of its divisors is an integer number (105400680).

Almost surely, 2^2331235540 is an apocalyptic number.

2331235540 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 2331235540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2529616320).

2331235540 is an abundant number, since it is smaller than the sum of its proper divisors (2727997100).

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

2331235540 is a wasteful number, since it uses less digits than its factorization.

2331235540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26992 (or 26990 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 2331235540 is about 48282.8700472538. The cubic root of 2331235540 is about 1325.9547958476.

Adding to 2331235540 its reverse (455321332), we get a palindrome (2786556872).

The spelling of 2331235540 in words is "two billion, three hundred thirty-one million, two hundred thirty-five thousand, five hundred forty".