2183836940 has 48 divisors (see below), whose sum is σ = 4728743712. Its totient is φ = 846544896.

The previous prime is 2183836939. The next prime is 2183836973. The reversal of 2183836940 is 496383812.

It is a junction number, because it is equal to n+sod(n) for n = 2183836891 and 2183836900.

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, 184439 + ... + 195921.

It is an arithmetic number, because the mean of its divisors is an integer number (98515494).

Almost surely, 2^2183836940 is an apocalyptic number.

2183836940 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 2183836940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2364371856).

2183836940 is an abundant number, since it is smaller than the sum of its proper divisors (2544906772).

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

2183836940 is a wasteful number, since it uses less digits than its factorization.

2183836940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11786 (or 11784 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 2183836940 is about 46731.5411686796. The cubic root of 2183836940 is about 1297.3985333043.

The spelling of 2183836940 in words is "two billion, one hundred eighty-three million, eight hundred thirty-six thousand, nine hundred forty".