439616 has 14 divisors (see below), whose sum is σ = 872490. Its totient is φ = 219776.

The previous prime is 439613. The next prime is 439631. The reversal of 439616 is 616934.

It can be written as a sum of positive squares in only one way, i.e., 246016 + 193600 = 496^2 + 440^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3371 + ... + 3498.

2⁴³⁹⁶¹⁶ is an apocalyptic number.

It is an amenable number.

439616 is a deficient number, since it is larger than the sum of its proper divisors (432874).

439616 is an equidigital number, since it uses as much as digits as its factorization.

439616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6881 (or 6871 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 439616 is about 663.0354439998. The cubic root of 439616 is about 76.0369165065.

The spelling of 439616 in words is "four hundred thirty-nine thousand, six hundred sixteen".