20442444220424 has 16 divisors (see below), whose sum is σ = 38489957740800. Its totient is φ = 10178455489552.

The previous prime is 20442444220409. The next prime is 20442444220427. The reversal of 20442444220424 is 42402244424402.

It is not an unprimeable number, because it can be changed into a prime (20442444220427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5345825552 + ... + 5345829375.

It is an arithmetic number, because the mean of its divisors is an integer number (2405622358800).

Almost surely, 2^{20442444220424} is an apocalyptic number.

It is an amenable number.

20442444220424 is a deficient number, since it is larger than the sum of its proper divisors (18047513520376).

20442444220424 is a wasteful number, since it uses less digits than its factorization.

20442444220424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10691655172 (or 10691655168 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 38.

Adding to 20442444220424 its reverse (42402244424402), we get a palindrome (62844688644826).

The spelling of 20442444220424 in words is "twenty trillion, four hundred forty-two billion, four hundred forty-four million, two hundred twenty thousand, four hundred twenty-four".