404036400008 has 8 divisors (see below), whose sum is σ = 757568250030. Its totient is φ = 202018200000.

The previous prime is 404036399993. The next prime is 404036400013. The reversal of 404036400008 is 800004630404.

It can be written as a sum of positive squares in only one way, i.e., 390352547524 + 13683852484 = 624782^2 + 116978^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 25252274993 + ... + 25252275008.

Almost surely, 2^404036400008 is an apocalyptic number.

It is an amenable number.

404036400008 is a deficient number, since it is larger than the sum of its proper divisors (353531850022).

404036400008 is a wasteful number, since it uses less digits than its factorization.

404036400008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50504550007 (or 50504550003 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The spelling of 404036400008 in words is "four hundred four billion, thirty-six million, four hundred thousand, eight".