1244244020004 has 60 divisors (see below), whose sum is σ = 3255373396044. Its totient is φ = 414407079936.

The previous prime is 1244244019999. The next prime is 1244244020017. The reversal of 1244244020004 is 4000204424421.

1244244020004 is a `hidden beast` number, since 12 + 4 + 4 + 2 + 440 + 200 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 538391997504 + 705852022500 = 733752^2 + 840150^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1244244020004.

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 19 ways as a sum of consecutive naturals, for example, 1183449 + ... + 1972064.

Almost surely, 2^{1244244020004} is an apocalyptic number.

It is an amenable number.

1244244020004 is an abundant number, since it is smaller than the sum of its proper divisors (2011129376040).

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

1244244020004 is a wasteful number, since it uses less digits than its factorization.

1244244020004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156746 (or 3156735 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 1244244020004 its reverse (4000204424421), we get a palindrome (5244448444425).

The spelling of 1244244020004 in words is "one trillion, two hundred forty-four billion, two hundred forty-four million, twenty thousand, four".