439445 has 8 divisors (see below), whose sum is σ = 531360. Its totient is φ = 348880.

The previous prime is 439441. The next prime is 439459. The reversal of 439445 is 544934.

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

It is not a de Polignac number, because 439445 - 2² = 439441 is a prime.

It is a super-2 number, since 2×439445² = 386223816050, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4 + 3¹¹ + 4² + 9 + 4⁹ + 5³ .

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 650 + ... + 1140.

It is an arithmetic number, because the mean of its divisors is an integer number (66420).

2⁴³⁹⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

439445 is a deficient number, since it is larger than the sum of its proper divisors (91915).

439445 is a wasteful number, since it uses less digits than its factorization.

439445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675.

The product of its digits is 8640, while the sum is 29.

The square root of 439445 is about 662.9064790753. The cubic root of 439445 is about 76.0270563870.

The spelling of 439445 in words is "four hundred thirty-nine thousand, four hundred forty-five".