440404044220 has 48 divisors (see below), whose sum is σ = 1064684859840. Its totient is φ = 149893507584.

The previous prime is 440404044217. The next prime is 440404044221. The reversal of 440404044220 is 22440404044.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440404044221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11461635 + ... + 11499994.

It is an arithmetic number, because the mean of its divisors is an integer number (22180934580).

Almost surely, 2^440404044220 is an apocalyptic number.

It is an amenable number.

440404044220 is an abundant number, since it is smaller than the sum of its proper divisors (624280815620).

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

440404044220 is a wasteful number, since it uses less digits than its factorization.

440404044220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22961782 (or 22961780 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 440404044220 its reverse (22440404044), we get a palindrome (462844448264).

The spelling of 440404044220 in words is "four hundred forty billion, four hundred four million, forty-four thousand, two hundred twenty".