2133384918 has 32 divisors (see below), whose sum is σ = 5088324096. Its totient is φ = 583036608.

The previous prime is 2133384907. The next prime is 2133384947. The reversal of 2133384918 is 8194833312.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 2133384918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1103271 + ... + 1105202.

It is an arithmetic number, because the mean of its divisors is an integer number (159010128).

Almost surely, 2^2133384918 is an apocalyptic number.

2133384918 is an abundant number, since it is smaller than the sum of its proper divisors (2954939178).

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

2133384918 is a wasteful number, since it uses less digits than its factorization.

2133384918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208508.

The product of its digits is 124416, while the sum is 42.

The square root of 2133384918 is about 46188.5799521916. The cubic root of 2133384918 is about 1287.3295553172.

The spelling of 2133384918 in words is "two billion, one hundred thirty-three million, three hundred eighty-four thousand, nine hundred eighteen".