440400404 has 12 divisors (see below), whose sum is σ = 770847924. Its totient is φ = 220158144.

The previous prime is 440400383. The next prime is 440400413. The reversal of 440400404 is 404004044.

It can be written as a sum of positive squares in 2 ways, for example, as 162511504 + 277888900 = 12748^2 + 16670^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33734 + ... + 44930.

It is an arithmetic number, because the mean of its divisors is an integer number (64237327).

Almost surely, 2^440400404 is an apocalyptic number.

It is an amenable number.

440400404 is a deficient number, since it is larger than the sum of its proper divisors (330447520).

440400404 is a wasteful number, since it uses less digits than its factorization.

440400404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21034 (or 21032 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 440400404 is about 20985.7190489151. The cubic root of 440400404 is about 760.8211369576.

Adding to 440400404 its reverse (404004044), we get a palindrome (844404448).

The spelling of 440400404 in words is "four hundred forty million, four hundred thousand, four hundred four".