20542442024 has 64 divisors (see below), whose sum is σ = 41886781440. Its totient is φ = 9388431360.

The previous prime is 20542442003. The next prime is 20542442087. The reversal of 20542442024 is 42024424502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8887829 + ... + 8890139.

It is an arithmetic number, because the mean of its divisors is an integer number (654480960).

Almost surely, 2^20542442024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20542442024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20943390720).

20542442024 is an abundant number, since it is smaller than the sum of its proper divisors (21344339416).

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

20542442024 is a wasteful number, since it uses less digits than its factorization.

20542442024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130 (or 3126 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

Adding to 20542442024 its reverse (42024424502), we get a palindrome (62566866526).

The spelling of 20542442024 in words is "twenty billion, five hundred forty-two million, four hundred forty-two thousand, twenty-four".