2215984 has 20 divisors (see below), whose sum is σ = 4546584. Its totient is φ = 1042688.

The previous prime is 2215979. The next prime is 2215987. The reversal of 2215984 is 4895122.

It is a super-3 number, since 3×2215984³ = 32645333958641651712, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2215987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3802 + ... + 4345.

2^2215984 is an apocalyptic number.

It is an amenable number.

2215984 is an abundant number, since it is smaller than the sum of its proper divisors (2330600).

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

2215984 is a wasteful number, since it uses less digits than its factorization.

2215984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8172 (or 8166 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 2215984 is about 1488.6181511724. The cubic root of 2215984 is about 130.3733645273.

The spelling of 2215984 in words is "two million, two hundred fifteen thousand, nine hundred eighty-four".