20404414304020 has 48 divisors (see below), whose sum is σ = 42872442560640. Its totient is φ = 8157352634496.

The previous prime is 20404414303979. The next prime is 20404414304077. The reversal of 20404414304020 is 2040341440402.

It is a self number, because there is not a number n which added to its sum of digits gives 20404414304020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 818817121 + ... + 818842039.

It is an arithmetic number, because the mean of its divisors is an integer number (893175886680).

Almost surely, 2^{20404414304020} is an apocalyptic number.

20404414304020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20404414304020 is an abundant number, since it is smaller than the sum of its proper divisors (22468028256620).

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

20404414304020 is a wasteful number, since it uses less digits than its factorization.

20404414304020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45424 (or 45422 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20404414304020 its reverse (2040341440402), we get a palindrome (22444755744422).

The spelling of 20404414304020 in words is "twenty trillion, four hundred four billion, four hundred fourteen million, three hundred four thousand, twenty".