440084771064 has 96 divisors (see below), whose sum is σ = 1226347471440. Its totient is φ = 142486310400.

The previous prime is 440084771051. The next prime is 440084771069. The reversal of 440084771064 is 460177480044.

It is a happy number.

440084771064 is a `hidden beast` number, since 440 + 0 + 84 + 7 + 71 + 0 + 64 = 666.

440084771064 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440084771069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 341734 + ... + 998474.

Almost surely, 2^440084771064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440084771064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613173735720).

440084771064 is an abundant number, since it is smaller than the sum of its proper divisors (786262700376).

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

440084771064 is a wasteful number, since it uses less digits than its factorization.

440084771064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657021 (or 657014 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The spelling of 440084771064 in words is "four hundred forty billion, eighty-four million, seven hundred seventy-one thousand, sixty-four".