440404 has 12 divisors (see below), whose sum is σ = 804384. Its totient is φ = 210584.

The previous prime is 440399. The next prime is 440431. The reversal of 440404 is 404044.

440404 is a modest number, since divided by 404 gives 44 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2302 + ... + 2485.

It is an arithmetic number, because the mean of its divisors is an integer number (67032).

2⁴⁴⁰⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

440404 is a deficient number, since it is larger than the sum of its proper divisors (363980).

440404 is a wasteful number, since it uses less digits than its factorization.

440404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4814 (or 4812 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 440404 is about 663.6294146585. The cubic root of 440404 is about 76.0823207729.

Adding to 440404 its reverse (404044), we get a palindrome (844448).

It can be divided in two parts, 44040 and 4, that added together give a palindrome (44044).

The spelling of 440404 in words is "four hundred forty thousand, four hundred four", and thus it is an iban number.