20424009792 has 28 divisors (see below), whose sum is σ = 54038526416. Its totient is φ = 6808003200.

The previous prime is 20424009791. The next prime is 20424009841. The reversal of 20424009792 is 29790042402.

It is a self number, because there is not a number n which added to its sum of digits gives 20424009792.

It is not an unprimeable number, because it can be changed into a prime (20424009791) 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 3 ways as a sum of consecutive naturals, for example, 53187334 + ... + 53187717.

It is an arithmetic number, because the mean of its divisors is an integer number (1929947372).

Almost surely, 2^20424009792 is an apocalyptic number.

It is an amenable number.

20424009792 is an abundant number, since it is smaller than the sum of its proper divisors (33614516624).

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

20424009792 is a wasteful number, since it uses less digits than its factorization.

20424009792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106375066 (or 106375056 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 20424009792 in words is "twenty billion, four hundred twenty-four million, nine thousand, seven hundred ninety-two".