4139984 has 20 divisors (see below), whose sum is σ = 8054916. Its totient is φ = 2061312.

The previous prime is 4139983. The next prime is 4139999. The reversal of 4139984 is 4899314.

It can be written as a sum of positive squares in 2 ways, for example, as 3139984 + 1000000 = 1772^2 + 1000^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4139983) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 5282 + ... + 6014.

Almost surely, 2^4139984 is an apocalyptic number.

It is an amenable number.

4139984 is a deficient number, since it is larger than the sum of its proper divisors (3914932).

4139984 is a wasteful number, since it uses less digits than its factorization.

4139984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1088 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 4139984 is about 2034.6950631483. The cubic root of 4139984 is about 160.5706705083.

The spelling of 4139984 in words is "four million, one hundred thirty-nine thousand, nine hundred eighty-four".