4021984 has 12 divisors (see below), whose sum is σ = 7918344. Its totient is φ = 2010976.

The previous prime is 4021973. The next prime is 4022003. The reversal of 4021984 is 4891204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62812 + ... + 62875.

It is an arithmetic number, because the mean of its divisors is an integer number (659862).

Almost surely, 2^4021984 is an apocalyptic number.

It is an amenable number.

4021984 is a deficient number, since it is larger than the sum of its proper divisors (3896360).

4021984 is a wasteful number, since it uses less digits than its factorization.

4021984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125697 (or 125689 counting only the distinct ones).

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

The square root of 4021984 is about 2005.4884691765. The cubic root of 4021984 is about 159.0303859230.

It can be divided in two parts, 4021 and 984, that added together give a palindrome (5005).

The spelling of 4021984 in words is "four million, twenty-one thousand, nine hundred eighty-four".