2184020 has 12 divisors (see below), whose sum is σ = 4586484. Its totient is φ = 873600.

The previous prime is 2184001. The next prime is 2184047. The reversal of 2184020 is 204812.

It can be written as a sum of positive squares in 2 ways, for example, as 1359556 + 824464 = 1166^2 + 908^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2184020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54581 + ... + 54620.

It is an arithmetic number, because the mean of its divisors is an integer number (382207).

2^2184020 is an apocalyptic number.

2184020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2184020 is an abundant number, since it is smaller than the sum of its proper divisors (2402464).

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

2184020 is a wasteful number, since it uses less digits than its factorization.

2184020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109210 (or 109208 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2184020 is about 1477.8430227869. The cubic root of 2184020 is about 129.7434783743.

Adding to 2184020 its reverse (204812), we get a palindrome (2388832).

The spelling of 2184020 in words is "two million, one hundred eighty-four thousand, twenty".