2184320 has 32 divisors (see below), whose sum is σ = 5223420. Its totient is φ = 873472.

The previous prime is 2184319. The next prime is 2184323. The reversal of 2184320 is 234812.

It can be written as a sum of positive squares in 2 ways, for example, as 2096704 + 87616 = 1448^2 + 296^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2184292 and 2184301.

It is not an unprimeable number, because it can be changed into a prime (2184323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067 + ... + 2346.

2^2184320 is an apocalyptic number.

2184320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2184320 is an abundant number, since it is smaller than the sum of its proper divisors (3039100).

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

2184320 is an equidigital number, since it uses as much as digits as its factorization.

2184320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432 (or 3420 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2184320 is about 1477.9445185798. The cubic root of 2184320 is about 129.7494186833.

The spelling of 2184320 in words is "two million, one hundred eighty-four thousand, three hundred twenty".