84440004084 has 36 divisors (see below), whose sum is σ = 214017840036. Its totient is φ = 28071203328.

The previous prime is 84440004073. The next prime is 84440004127. The reversal of 84440004084 is 48040004448.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17286464484 + 67153539600 = 131478^2 + 259140^2 .

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

It is a super-2 number, since 2×84440004084² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 3130749 + ... + 3157604.

It is an arithmetic number, because the mean of its divisors is an integer number (5944940001).

Almost surely, 2^84440004084 is an apocalyptic number.

It is an amenable number.

84440004084 is an abundant number, since it is smaller than the sum of its proper divisors (129577835952).

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

84440004084 is a wasteful number, since it uses less digits than its factorization.

84440004084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6288736 (or 6288731 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 36.

The spelling of 84440004084 in words is "eighty-four billion, four hundred forty million, four thousand, eighty-four".