20004002424444 has 48 divisors (see below), whose sum is σ = 47915068481280. Its totient is φ = 6491989069440.

The previous prime is 20004002424433. The next prime is 20004002424493. The reversal of 20004002424444 is 44442420040002.

It is a super-2 number, since 2×20004002424444² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 62166609 + ... + 62487560.

It is an arithmetic number, because the mean of its divisors is an integer number (998230593360).

Almost surely, 2^{20004002424444} is an apocalyptic number.

It is an amenable number.

20004002424444 is an abundant number, since it is smaller than the sum of its proper divisors (27911066056836).

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

20004002424444 is a wasteful number, since it uses less digits than its factorization.

20004002424444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124654530 (or 124654528 counting only the distinct ones).

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

Adding to 20004002424444 its reverse (44442420040002), we get a palindrome (64446422464446).

The spelling of 20004002424444 in words is "twenty trillion, four billion, two million, four hundred twenty-four thousand, four hundred forty-four".