20424440204 has 24 divisors (see below), whose sum is σ = 41085010848. Its totient is φ = 8702732160.

The previous prime is 20424440173. The next prime is 20424440207. The reversal of 20424440204 is 40204442402.

It is not an unprimeable number, because it can be changed into a prime (20424440207) 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, 2103377 + ... + 2113064.

It is an arithmetic number, because the mean of its divisors is an integer number (1711875452).

Almost surely, 2^20424440204 is an apocalyptic number.

It is an amenable number.

20424440204 is an abundant number, since it is smaller than the sum of its proper divisors (20660570644).

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

20424440204 is a wasteful number, since it uses less digits than its factorization.

20424440204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216625 (or 4216623 counting only the distinct ones).

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

Adding to 20424440204 its reverse (40204442402), we get a palindrome (60628882606).

The spelling of 20424440204 in words is "twenty billion, four hundred twenty-four million, four hundred forty thousand, two hundred four".