2184879820 has 24 divisors (see below), whose sum is σ = 4589129664. Its totient is φ = 873783936.

The previous prime is 2184879811. The next prime is 2184879833. The reversal of 2184879820 is 289784812.

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, 184189 + ... + 195691.

It is an arithmetic number, because the mean of its divisors is an integer number (191213736).

Almost surely, 2^2184879820 is an apocalyptic number.

2184879820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2184879820 is an abundant number, since it is smaller than the sum of its proper divisors (2404249844).

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

2184879820 is a wasteful number, since it uses less digits than its factorization.

2184879820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21009 (or 21007 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

The square root of 2184879820 is about 46742.6980393730. The cubic root of 2184879820 is about 1297.6050224179.

The spelling of 2184879820 in words is "two billion, one hundred eighty-four million, eight hundred seventy-nine thousand, eight hundred twenty".