20424223404 has 36 divisors (see below), whose sum is σ = 55599276096. Its totient is φ = 6284376288.

The previous prime is 20424223397. The next prime is 20424223409. The reversal of 20424223404 is 40432242402.

20424223404 is a `hidden beast` number, since 2 + 0 + 424 + 2 + 234 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (20424223409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21820284 + ... + 21821219.

It is an arithmetic number, because the mean of its divisors is an integer number (1544424336).

Almost surely, 2^20424223404 is an apocalyptic number.

It is an amenable number.

20424223404 is an abundant number, since it is smaller than the sum of its proper divisors (35175052692).

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

20424223404 is a wasteful number, since it uses less digits than its factorization.

20424223404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43641526 (or 43641521 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 20424223404 its reverse (40432242402), we get a palindrome (60856465806).

The spelling of 20424223404 in words is "twenty billion, four hundred twenty-four million, two hundred twenty-three thousand, four hundred four".