2183838220 has 24 divisors (see below), whose sum is σ = 4597866000. Its totient is φ = 871286592.

The previous prime is 2183838203. The next prime is 2183838229. The reversal of 2183838220 is 228383812.

It is a super-2 number, since 2×2183838220² = 9538298742265536800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2183838220.

It is not an unprimeable number, because it can be changed into a prime (2183838229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132570 + ... + 148129.

It is an arithmetic number, because the mean of its divisors is an integer number (191577750).

Almost surely, 2^2183838220 is an apocalyptic number.

2183838220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2183838220 is an abundant number, since it is smaller than the sum of its proper divisors (2414027780).

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

2183838220 is a wasteful number, since it uses less digits than its factorization.

2183838220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281097 (or 281095 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 2183838220 is about 46731.5548639247. The cubic root of 2183838220 is about 1297.3987867832.

The spelling of 2183838220 in words is "two billion, one hundred eighty-three million, eight hundred thirty-eight thousand, two hundred twenty".