20404440004044 has 24 divisors (see below), whose sum is σ = 47718811866880. Its totient is φ = 6785986878864.

The previous prime is 20404440004043. The next prime is 20404440004093. The reversal of 20404440004044 is 44040004440402.

It is a super-2 number, since 2×20404440004044² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20404440004043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1936634824 + ... + 1936645359.

Almost surely, 2^{20404440004044} is an apocalyptic number.

It is an amenable number.

20404440004044 is an abundant number, since it is smaller than the sum of its proper divisors (27314371862836).

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

20404440004044 is a wasteful number, since it uses less digits than its factorization.

20404440004044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3873280629 (or 3873280627 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 20404440004044 its reverse (44040004440402), we get a palindrome (64444444444446).

The spelling of 20404440004044 in words is "twenty trillion, four hundred four billion, four hundred forty million, four thousand, forty-four".