20424442024 has 16 divisors (see below), whose sum is σ = 43766661600. Its totient is φ = 8753332272.

The previous prime is 20424442019. The next prime is 20424442067. The reversal of 20424442024 is 42024442402.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 20424441983 and 20424442001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182361034 + ... + 182361145.

It is an arithmetic number, because the mean of its divisors is an integer number (2735416350).

Almost surely, 2^20424442024 is an apocalyptic number.

It is an amenable number.

20424442024 is an abundant number, since it is smaller than the sum of its proper divisors (23342219576).

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

20424442024 is a wasteful number, since it uses less digits than its factorization.

20424442024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364722192 (or 364722188 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 20424442024 its reverse (42024442402), we get a palindrome (62448884426).

The spelling of 20424442024 in words is "twenty billion, four hundred twenty-four million, four hundred forty-two thousand, twenty-four".