20404424204 has 12 divisors (see below), whose sum is σ = 35708846544. Its totient is φ = 10201896624.

The previous prime is 20404424143. The next prime is 20404424213. The reversal of 20404424204 is 40242440402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125489 + ... + 237815.

It is an arithmetic number, because the mean of its divisors is an integer number (2975737212).

Almost surely, 2^20404424204 is an apocalyptic number.

It is an amenable number.

20404424204 is a deficient number, since it is larger than the sum of its proper divisors (15304422340).

20404424204 is a wasteful number, since it uses less digits than its factorization.

20404424204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157744 (or 157742 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20404424204 its reverse (40242440402), we get a palindrome (60646864606).

It can be divided in two parts, 2040 and 4424204, that added together give a palindrome (4426244).

The spelling of 20404424204 in words is "twenty billion, four hundred four million, four hundred twenty-four thousand, two hundred four".