439441 has 2 divisors, whose sum is σ = 439442. Its totient is φ = 439440.

The previous prime is 439429. The next prime is 439459. The reversal of 439441 is 144934.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336400 + 103041 = 580^2 + 321^2 .

It is a cyclic number.

It is not a de Polignac number, because 439441 - 2⁵ = 439409 is a prime.

It is a d-powerful number, because it can be written as 4 + 3¹¹ + 4³ + 9² + 4⁹ + 1 .

It is not a weakly prime, because it can be changed into another prime (439421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219720 + 219721.

It is an arithmetic number, because the mean of its divisors is an integer number (219721).

2⁴³⁹⁴⁴¹ is an apocalyptic number.

It is an amenable number.

439441 is a deficient number, since it is larger than the sum of its proper divisors (1).

439441 is an equidigital number, since it uses as much as digits as its factorization.

439441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 439441 is about 662.9034620516. The cubic root of 439441 is about 76.0268257103.

The spelling of 439441 in words is "four hundred thirty-nine thousand, four hundred forty-one".