439925 has 6 divisors (see below), whose sum is σ = 545538. Its totient is φ = 351920.

The previous prime is 439919. The next prime is 439949. The reversal of 439925 is 529934.

It can be written as a sum of positive squares in 3 ways, for example, as 1681 + 438244 = 41^2 + 662^2 .

It is not a de Polignac number, because 439925 - 2⁶ = 439861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 439891 and 439900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8774 + ... + 8823.

It is an arithmetic number, because the mean of its divisors is an integer number (90923).

2⁴³⁹⁹²⁵ is an apocalyptic number.

It is an amenable number.

439925 is a deficient number, since it is larger than the sum of its proper divisors (105613).

439925 is a wasteful number, since it uses less digits than its factorization.

439925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17607 (or 17602 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 439925 is about 663.2684222847. The cubic root of 439925 is about 76.0547274328.

Subtracting 439925 from its reverse (529934), we obtain a palindrome (90009).

The spelling of 439925 in words is "four hundred thirty-nine thousand, nine hundred twenty-five".