2111808384 has 96 divisors (see below), whose sum is σ = 6945110640. Its totient is φ = 603371520.

The previous prime is 2111808383. The next prime is 2111808403. The reversal of 2111808384 is 4838081112.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111808383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122877 + ... + 139004.

Almost surely, 2^2111808384 is an apocalyptic number.

2111808384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2111808384 is an abundant number, since it is smaller than the sum of its proper divisors (4833302256).

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

2111808384 is a wasteful number, since it uses less digits than its factorization.

2111808384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261908 (or 261893 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 2111808384 is about 45954.4163710083. The cubic root of 2111808384 is about 1282.9749293792.

Adding to 2111808384 its reverse (4838081112), we get a palindrome (6949889496).

The spelling of 2111808384 in words is "two billion, one hundred eleven million, eight hundred eight thousand, three hundred eighty-four".