440130244420520 has 16 divisors (see below), whose sum is σ = 990293049946260. Its totient is φ = 176052097768192.

The previous prime is 440130244420511. The next prime is 440130244420571. The reversal of 440130244420520 is 25024442031044.

It can be written as a sum of positive squares in 2 ways, for example, as 401706536293924 + 38423708126596 = 20042618^2 + 6198686^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5501628055217 + ... + 5501628055296.

Almost surely, 2^{440130244420520} is an apocalyptic number.

440130244420520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440130244420520 is an abundant number, since it is smaller than the sum of its proper divisors (550162805525740).

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

440130244420520 is a wasteful number, since it uses less digits than its factorization.

440130244420520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11003256110524 (or 11003256110520 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 440130244420520 its reverse (25024442031044), we get a palindrome (465154686451564).

The spelling of 440130244420520 in words is "four hundred forty trillion, one hundred thirty billion, two hundred forty-four million, four hundred twenty thousand, five hundred twenty".