20004424320 has 64 divisors (see below), whose sum is σ = 63764108640. Its totient is φ = 5334512640.

The previous prime is 20004424313. The next prime is 20004424327. The reversal of 20004424320 is 2342440002.

It is an interprime number because it is at equal distance from previous prime (20004424313) and next prime (20004424327).

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (20004424327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5207566 + ... + 5211405.

Almost surely, 2^20004424320 is an apocalyptic number.

20004424320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20004424320 is an abundant number, since it is smaller than the sum of its proper divisors (43759684320).

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

20004424320 is a wasteful number, since it uses less digits than its factorization.

20004424320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10418993 (or 10418981 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 20004424320 its reverse (2342440002), we get a palindrome (22346864322).

The spelling of 20004424320 in words is "twenty billion, four million, four hundred twenty-four thousand, three hundred twenty".