2042404404044 has 24 divisors (see below), whose sum is σ = 3864975549120. Its totient is φ = 940681876736.

The previous prime is 2042404404037. The next prime is 2042404404049. The reversal of 2042404404044 is 4404044042402.

It is a self number, because there is not a number n which added to its sum of digits gives 2042404404044.

It is not an unprimeable number, because it can be changed into a prime (2042404404049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319521899 + ... + 319528290.

It is an arithmetic number, because the mean of its divisors is an integer number (161040647880).

Almost surely, 2^{2042404404044} is an apocalyptic number.

It is an amenable number.

2042404404044 is a deficient number, since it is larger than the sum of its proper divisors (1822571145076).

2042404404044 is a wasteful number, since it uses less digits than its factorization.

2042404404044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639050257 (or 639050255 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 2042404404044 its reverse (4404044042402), we get a palindrome (6446448446446).

The spelling of 2042404404044 in words is "two trillion, forty-two billion, four hundred four million, four hundred four thousand, forty-four".