20424224440440 has 96 divisors (see below), whose sum is σ = 69264761173920. Its totient is φ = 5209657246464.

The previous prime is 20424224440381. The next prime is 20424224440441. The reversal of 20424224440440 is 4404442242402.

20424224440440 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 4 + 2 + 244 + 404 + 4 + 0 = 666.

20424224440440 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×20424224440440² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20424224440395 and 20424224440404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424224440441) 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 23 ways as a sum of consecutive naturals, for example, 1233338607 + ... + 1233355166.

It is an arithmetic number, because the mean of its divisors is an integer number (721507928895).

Almost surely, 2^{20424224440440} is an apocalyptic number.

20424224440440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20424224440440 is an abundant number, since it is smaller than the sum of its proper divisors (48840536733480).

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

20424224440440 is a wasteful number, since it uses less digits than its factorization.

20424224440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466693813 (or 2466693806 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 36.

Adding to 20424224440440 its reverse (4404442242402), we get a palindrome (24828666682842).

The spelling of 20424224440440 in words is "twenty trillion, four hundred twenty-four billion, two hundred twenty-four million, four hundred forty thousand, four hundred forty".