2180384 has 24 divisors (see below), whose sum is σ = 4366908. Its totient is φ = 1071360.

The previous prime is 2180371. The next prime is 2180389. The reversal of 2180384 is 4830812.

2180384 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1507984 + 672400 = 1228^2 + 820^2 .

It is not an unprimeable number, because it can be changed into a prime (2180389) 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, 1394 + ... + 2510.

2^2180384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2180384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2183454).

2180384 is an abundant number, since it is smaller than the sum of its proper divisors (2186524).

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

2180384 is a wasteful number, since it uses less digits than its factorization.

2180384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188 (or 1180 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 2180384 is about 1476.6123391060. The cubic root of 2180384 is about 129.6714385393.

The spelling of 2180384 in words is "two million, one hundred eighty thousand, three hundred eighty-four".