20002420424 has 32 divisors (see below), whose sum is σ = 43859133120. Its totient is φ = 8373105216.

The previous prime is 20002420421. The next prime is 20002420441. The reversal of 20002420424 is 42402420002.

It is a junction number, because it is equal to n+sod(n) for n = 20002420396 and 20002420405.

It is not an unprimeable number, because it can be changed into a prime (20002420421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4150919 + ... + 4155734.

It is an arithmetic number, because the mean of its divisors is an integer number (1370597910).

Almost surely, 2^20002420424 is an apocalyptic number.

It is an amenable number.

20002420424 is an abundant number, since it is smaller than the sum of its proper divisors (23856712696).

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

20002420424 is a wasteful number, since it uses less digits than its factorization.

20002420424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8306709 (or 8306705 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20002420424 its reverse (42402420002), we get a palindrome (62404840426).

The spelling of 20002420424 in words is "twenty billion, two million, four hundred twenty thousand, four hundred twenty-four".