400044404 has 12 divisors (see below), whose sum is σ = 710527104. Its totient is φ = 197036664.

The previous prime is 400044397. The next prime is 400044419. The reversal of 400044404 is 404440004.

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, 746084 + ... + 746619.

It is an arithmetic number, because the mean of its divisors is an integer number (59210592).

Almost surely, 2^400044404 is an apocalyptic number.

It is an amenable number.

400044404 is a deficient number, since it is larger than the sum of its proper divisors (310482700).

400044404 is a wasteful number, since it uses less digits than its factorization.

400044404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492774 (or 1492772 counting only the distinct ones).

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

The square root of 400044404 is about 20001.1100691937. The cubic root of 400044404 is about 736.8335630084.

Adding to 400044404 its reverse (404440004), we get a palindrome (804484408).

The spelling of 400044404 in words is "four hundred million, forty-four thousand, four hundred four".