20442440242443 has 8 divisors (see below), whose sum is σ = 28691144200000. Its totient is φ = 12911014889928.

The previous prime is 20442440242423. The next prime is 20442440242489. The reversal of 20442440242443 is 34424204424402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20442440242443 - 2⁶ = 20442440242379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20442440242423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179319651193 + ... + 179319651306.

It is an arithmetic number, because the mean of its divisors is an integer number (3586393025000).

Almost surely, 2^{20442440242443} is an apocalyptic number.

20442440242443 is a deficient number, since it is larger than the sum of its proper divisors (8248703957557).

20442440242443 is a wasteful number, since it uses less digits than its factorization.

20442440242443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358639302521.

The product of its (nonzero) digits is 786432, while the sum is 39.

Adding to 20442440242443 its reverse (34424204424402), we get a palindrome (54866644666845).

The spelling of 20442440242443 in words is "twenty trillion, four hundred forty-two billion, four hundred forty million, two hundred forty-two thousand, four hundred forty-three".