2221984 has 24 divisors (see below), whose sum is σ = 4566240. Its totient is φ = 1062336.

The previous prime is 2221981. The next prime is 2221991. The reversal of 2221984 is 4891222.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2221981) 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, 774 + ... + 2245.

It is an arithmetic number, because the mean of its divisors is an integer number (190260).

2^2221984 is an apocalyptic number.

It is an amenable number.

2221984 is an abundant number, since it is smaller than the sum of its proper divisors (2344256).

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

2221984 is a wasteful number, since it uses less digits than its factorization.

2221984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052 (or 3044 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 2221984 is about 1490.6320806960. The cubic root of 2221984 is about 130.4909248300.

The spelling of 2221984 in words is "two million, two hundred twenty-one thousand, nine hundred eighty-four".