439984 has 20 divisors (see below), whose sum is σ = 863784. Its totient is φ = 217088.

The previous prime is 439981. The next prime is 439991. The reversal of 439984 is 489934.

It is not an unprimeable number, because it can be changed into a prime (439981) 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, 1584 + ... + 1840.

2⁴³⁹⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

439984 is a deficient number, since it is larger than the sum of its proper divisors (423800).

439984 is a wasteful number, since it uses less digits than its factorization.

439984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 366 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 439984 is about 663.3128975077. The cubic root of 439984 is about 76.0581272762.

The spelling of 439984 in words is "four hundred thirty-nine thousand, nine hundred eighty-four".