804000400884 has 18 divisors (see below), whose sum is σ = 2032334346770. Its totient is φ = 268000133616.

The previous prime is 804000400817. The next prime is 804000400921. The reversal of 804000400884 is 488004000408.

It can be written as a sum of positive squares in only one way, i.e., 565834928400 + 238165472484 = 752220^2 + 488022^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 22333344469 = 804000400884 / (8 + 0 + 4 + 0 + 0 + 0 + 4 + 0 + 0 + 8 + 8 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11166672199 + ... + 11166672270.

Almost surely, 2^804000400884 is an apocalyptic number.

It is an amenable number.

804000400884 is an abundant number, since it is smaller than the sum of its proper divisors (1228333945886).

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

804000400884 is a wasteful number, since it uses less digits than its factorization.

804000400884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22333344479 (or 22333344474 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The spelling of 804000400884 in words is "eight hundred four billion, four hundred thousand, eight hundred eighty-four".