8400044404404 has 36 divisors (see below), whose sum is σ = 21310100641284. Its totient is φ = 2789906441472.

The previous prime is 8400044404403. The next prime is 8400044404483. The reversal of 8400044404404 is 4044044400048.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4030698675600 + 4369345728804 = 2007660^2 + 2090298^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8400044404403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421171557 + ... + 421191500.

Almost surely, 2^{8400044404404} is an apocalyptic number.

It is an amenable number.

8400044404404 is an abundant number, since it is smaller than the sum of its proper divisors (12910056236880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8400044404404 is a wasteful number, since it uses less digits than its factorization.

8400044404404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842363344 (or 842363339 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 36.

The spelling of 8400044404404 in words is "eight trillion, four hundred billion, forty-four million, four hundred four thousand, four hundred four".