2118006420 has 24 divisors (see below), whose sum is σ = 5930418144. Its totient is φ = 564801696.

The previous prime is 2118006383. The next prime is 2118006431. The reversal of 2118006420 is 246008112.

It is a super-2 number, since 2×2118006420² = 8971902390322432800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17649994 + ... + 17650113.

It is an arithmetic number, because the mean of its divisors is an integer number (247100756).

Almost surely, 2^2118006420 is an apocalyptic number.

2118006420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2118006420 is an abundant number, since it is smaller than the sum of its proper divisors (3812411724).

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

2118006420 is a wasteful number, since it uses less digits than its factorization.

2118006420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35300119 (or 35300117 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2118006420 is about 46021.8037456161. The cubic root of 2118006420 is about 1284.2288559569.

The spelling of 2118006420 in words is "two billion, one hundred eighteen million, six thousand, four hundred twenty".