20042243024 has 40 divisors (see below), whose sum is σ = 43280087040. Its totient is φ = 8935239168.

The previous prime is 20042243003. The next prime is 20042243027. The reversal of 20042243024 is 42034224002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042243027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1933904 + ... + 1944239.

It is an arithmetic number, because the mean of its divisors is an integer number (1082002176).

Almost surely, 2^20042243024 is an apocalyptic number.

It is an amenable number.

20042243024 is an abundant number, since it is smaller than the sum of its proper divisors (23237844016).

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

20042243024 is a wasteful number, since it uses less digits than its factorization.

20042243024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878187 (or 3878181 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 20042243024 its reverse (42034224002), we get a palindrome (62076467026).

The spelling of 20042243024 in words is "twenty billion, forty-two million, two hundred forty-three thousand, twenty-four".