2143984 has 10 divisors (see below), whose sum is σ = 4154000. Its totient is φ = 1071984.

The previous prime is 2143969. The next prime is 2143993. The reversal of 2143984 is 4893412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66984 + ... + 67015.

It is an arithmetic number, because the mean of its divisors is an integer number (415400).

2^2143984 is an apocalyptic number.

It is an amenable number.

2143984 is a deficient number, since it is larger than the sum of its proper divisors (2010016).

2143984 is a wasteful number, since it uses less digits than its factorization.

2143984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134007 (or 134001 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 2143984 is about 1464.2349538240. The cubic root of 2143984 is about 128.9457937831.

The spelling of 2143984 in words is "two million, one hundred forty-three thousand, nine hundred eighty-four".