4044840084405 has 32 divisors (see below), whose sum is σ = 7366212846720. Its totient is φ = 2104632236160.

The previous prime is 4044840084403. The next prime is 4044840084413. The reversal of 4044840084405 is 5044800484404.

It is not a de Polignac number, because 4044840084405 - 2¹ = 4044840084403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4044840084401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365382007 + ... + 365393076.

It is an arithmetic number, because the mean of its divisors is an integer number (230194151460).

Almost surely, 2^{4044840084405} is an apocalyptic number.

4044840084405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4044840084405 is a deficient number, since it is larger than the sum of its proper divisors (3321372762315).

4044840084405 is a wasteful number, since it uses less digits than its factorization.

4044840084405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730775138 (or 730775132 counting only the distinct ones).

The product of its (nonzero) digits is 1310720, while the sum is 45.

The spelling of 4044840084405 in words is "four trillion, forty-four billion, eight hundred forty million, eighty-four thousand, four hundred five".