404004000404 has 12 divisors (see below), whose sum is σ = 708313856628. Its totient is φ = 201628612800.

The previous prime is 404004000397. The next prime is 404004000409. The reversal of 404004000404 is 404000400404.

It can be written as a sum of positive squares in 2 ways, for example, as 245996160400 + 158007840004 = 495980^2 + 397502^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404004000409) 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, 93344417 + ... + 93348744.

It is an arithmetic number, because the mean of its divisors is an integer number (59026154719).

Almost surely, 2^404004000404 is an apocalyptic number.

It is an amenable number.

404004000404 is a deficient number, since it is larger than the sum of its proper divisors (304309856224).

404004000404 is a wasteful number, since it uses less digits than its factorization.

404004000404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186693706 (or 186693704 counting only the distinct ones).

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

Adding to 404004000404 its reverse (404000400404), we get a palindrome (808004400808).

The spelling of 404004000404 in words is "four hundred four billion, four million, four hundred four", and thus it is an aban number.