439436 has 6 divisors (see below), whose sum is σ = 769020. Its totient is φ = 219716.

The previous prime is 439429. The next prime is 439441. The reversal of 439436 is 634934.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 439399 and 439408.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 439436.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54926 + ... + 54933.

It is an arithmetic number, because the mean of its divisors is an integer number (128170).

2⁴³⁹⁴³⁶ is an apocalyptic number.

It is an amenable number.

439436 is a deficient number, since it is larger than the sum of its proper divisors (329584).

439436 is a wasteful number, since it uses less digits than its factorization.

439436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109863 (or 109861 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

The square root of 439436 is about 662.8996907527. The cubic root of 439436 is about 76.0265373624.

The spelling of 439436 in words is "four hundred thirty-nine thousand, four hundred thirty-six".