439946 has 8 divisors (see below), whose sum is σ = 710724. Its totient is φ = 203040.

The previous prime is 439919. The next prime is 439949. The reversal of 439946 is 649934.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 436921 + 3025 = 661^2 + 55^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (439949) by changing a digit.

439946 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8435 + ... + 8486.

2⁴³⁹⁹⁴⁶ is an apocalyptic number.

439946 is a deficient number, since it is larger than the sum of its proper divisors (270778).

439946 is a wasteful number, since it uses less digits than its factorization.

439946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16936.

The product of its digits is 23328, while the sum is 35.

The square root of 439946 is about 663.2842527906. The cubic root of 439946 is about 76.0559375814.

The spelling of 439946 in words is "four hundred thirty-nine thousand, nine hundred forty-six".