1044240405220 has 24 divisors (see below), whose sum is σ = 2192972000184. Its totient is φ = 417683371776.

The previous prime is 1044240405217. The next prime is 1044240405233. The reversal of 1044240405220 is 225040424401.

It can be written as a sum of positive squares in 4 ways, for example, as 19723955364 + 1024516449856 = 140442^2 + 1012184^2 .

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 7 ways as a sum of consecutive naturals, for example, 115659 + ... + 1449778.

It is an arithmetic number, because the mean of its divisors is an integer number (91373833341).

Almost surely, 2^{1044240405220} is an apocalyptic number.

1044240405220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044240405220 is an abundant number, since it is smaller than the sum of its proper divisors (1148731594964).

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

1044240405220 is a wasteful number, since it uses less digits than its factorization.

1044240405220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598799 (or 1598797 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 1044240405220 its reverse (225040424401), we get a palindrome (1269280829621).

The spelling of 1044240405220 in words is "one trillion, forty-four billion, two hundred forty million, four hundred five thousand, two hundred twenty".