20442040024 has 32 divisors (see below), whose sum is σ = 44229669120. Its totient is φ = 8675814816.

The previous prime is 20442040019. The next prime is 20442040033. The reversal of 20442040024 is 42004024402.

It is a junction number, because it is equal to n+sod(n) for n = 20442039977 and 20442040004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766254 + ... + 1777789.

It is an arithmetic number, because the mean of its divisors is an integer number (1382177160).

Almost surely, 2^20442040024 is an apocalyptic number.

It is an amenable number.

20442040024 is an abundant number, since it is smaller than the sum of its proper divisors (23787629096).

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

20442040024 is a wasteful number, since it uses less digits than its factorization.

20442040024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544159 (or 3544155 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20442040024 its reverse (42004024402), we get a palindrome (62446064426).

The spelling of 20442040024 in words is "twenty billion, four hundred forty-two million, forty thousand, twenty-four".