2133232240 has 80 divisors (see below), whose sum is σ = 5092531200. Its totient is φ = 830649600.

The previous prime is 2133232237. The next prime is 2133232249. The reversal of 2133232240 is 422323312.

2133232240 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133232249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746815 + ... + 749665.

It is an arithmetic number, because the mean of its divisors is an integer number (63656640).

Almost surely, 2^2133232240 is an apocalyptic number.

2133232240 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 2133232240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2546265600).

2133232240 is an abundant number, since it is smaller than the sum of its proper divisors (2959298960).

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

2133232240 is a wasteful number, since it uses less digits than its factorization.

2133232240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110 (or 3104 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2133232240 is about 46186.9271547697. The cubic root of 2133232240 is about 1287.2988448738.

Adding to 2133232240 its reverse (422323312), we get a palindrome (2555555552).

The spelling of 2133232240 in words is "two billion, one hundred thirty-three million, two hundred thirty-two thousand, two hundred forty".