439442 has 4 divisors (see below), whose sum is σ = 659166. Its totient is φ = 219720.

The previous prime is 439441. The next prime is 439459. The reversal of 439442 is 244934.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 410881 + 28561 = 641^2 + 169^2 .

It is a d-powerful number, because it can be written as 4 + 3¹¹ + 4³ + 9² + 4⁹ + 2 .

It is not an unprimeable number, because it can be changed into a prime (439441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109859 + ... + 109862.

2⁴³⁹⁴⁴² is an apocalyptic number.

439442 is a deficient number, since it is larger than the sum of its proper divisors (219724).

439442 is a wasteful number, since it uses less digits than its factorization.

439442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219723.

The product of its digits is 3456, while the sum is 26.

The square root of 439442 is about 662.9042163088. The cubic root of 439442 is about 76.0268833796.

The spelling of 439442 in words is "four hundred thirty-nine thousand, four hundred forty-two".