400000404404 has 12 divisors (see below), whose sum is σ = 700005180000. Its totient is φ = 199998924408.

The previous prime is 400000404403. The next prime is 400000404407. The reversal of 400000404404 is 404404000004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400000404403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914447 + ... + 1279145.

It is an arithmetic number, because the mean of its divisors is an integer number (58333765000).

Almost surely, 2^400000404404 is an apocalyptic number.

It is an amenable number.

400000404404 is a deficient number, since it is larger than the sum of its proper divisors (300004775596).

400000404404 is a wasteful number, since it uses less digits than its factorization.

400000404404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638902 (or 638900 counting only the distinct ones).

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

Adding to 400000404404 its reverse (404404000004), we get a palindrome (804404404408).

The spelling of 400000404404 in words is "four hundred billion, four hundred four thousand, four hundred four".