2133442140 has 108 divisors (see below), whose sum is σ = 6133029336. Its totient is φ = 554129664.

The previous prime is 2133442133. The next prime is 2133442177. The reversal of 2133442140 is 412443312.

It is a self number, because there is not a number n which added to its sum of digits gives 2133442140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23971216 + ... + 23971304.

Almost surely, 2^2133442140 is an apocalyptic number.

2133442140 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 2133442140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3066514668).

2133442140 is an abundant number, since it is smaller than the sum of its proper divisors (3999587196).

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

2133442140 is an equidigital number, since it uses as much as digits as its factorization.

2133442140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2133442140 is about 46189.1993868697. The cubic root of 2133442140 is about 1287.3410648691.

Adding to 2133442140 its reverse (412443312), we get a palindrome (2545885452).

The spelling of 2133442140 in words is "two billion, one hundred thirty-three million, four hundred forty-two thousand, one hundred forty".