20202400422424 has 64 divisors (see below), whose sum is σ = 41822555040000. Its totient is φ = 9071925889920.

The previous prime is 20202400422419. The next prime is 20202400422439. The reversal of 20202400422424 is 42422400420202.

It is a junction number, because it is equal to n+sod(n) for n = 20202400422392 and 20202400422401.

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, 356910877 + ... + 356967475.

It is an arithmetic number, because the mean of its divisors is an integer number (653477422500).

Almost surely, 2^{20202400422424} is an apocalyptic number.

It is an amenable number.

20202400422424 is an abundant number, since it is smaller than the sum of its proper divisors (21620154617576).

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

20202400422424 is a wasteful number, since it uses less digits than its factorization.

20202400422424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105568 (or 105564 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 20202400422424 its reverse (42422400420202), we get a palindrome (62624800842626).

The spelling of 20202400422424 in words is "twenty trillion, two hundred two billion, four hundred million, four hundred twenty-two thousand, four hundred twenty-four".