20411413202440 has 64 divisors (see below), whose sum is σ = 49761850420800. Its totient is φ = 7490285436672.

The previous prime is 20411413202437. The next prime is 20411413202497. The reversal of 20411413202440 is 4420231411402.

It is a junction number, because it is equal to n+sod(n) for n = 20411413202399 and 20411413202408.

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, 120322350 + ... + 120491869.

It is an arithmetic number, because the mean of its divisors is an integer number (777528912825).

Almost surely, 2^{20411413202440} is an apocalyptic number.

20411413202440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20411413202440 is an abundant number, since it is smaller than the sum of its proper divisors (29350437218360).

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

20411413202440 is a wasteful number, since it uses less digits than its factorization.

20411413202440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240814406 (or 240814402 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 20411413202440 its reverse (4420231411402), we get a palindrome (24831644613842).

The spelling of 20411413202440 in words is "twenty trillion, four hundred eleven billion, four hundred thirteen million, two hundred two thousand, four hundred forty".