2133330440 has 16 divisors (see below), whose sum is σ = 4799993580. Its totient is φ = 853332160.

The previous prime is 2133330421. The next prime is 2133330449. The reversal of 2133330440 is 440333312.

It can be written as a sum of positive squares in 2 ways, for example, as 2060978404 + 72352036 = 45398^2 + 8506^2 .

It is not an unprimeable number, because it can be changed into a prime (2133330449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26666591 + ... + 26666670.

Almost surely, 2^2133330440 is an apocalyptic number.

2133330440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133330440 is an abundant number, since it is smaller than the sum of its proper divisors (2666663140).

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

2133330440 is a wasteful number, since it uses less digits than its factorization.

2133330440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53333272 (or 53333268 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 2133330440 is about 46187.9902139073. The cubic root of 2133330440 is about 1287.3185974984.

Adding to 2133330440 its reverse (440333312), we get a palindrome (2573663752).

The spelling of 2133330440 in words is "two billion, one hundred thirty-three million, three hundred thirty thousand, four hundred forty".