20132442440440 has 32 divisors (see below), whose sum is σ = 49415995082160. Its totient is φ = 7320888160000.

The previous prime is 20132442440419. The next prime is 20132442440449. The reversal of 20132442440440 is 4404424423102.

It is a junction number, because it is equal to n+sod(n) for n = 20132442440396 and 20132442440405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132442440449) 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, 22877775061 + ... + 22877775940.

Almost surely, 2^{20132442440440} is an apocalyptic number.

20132442440440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20132442440440 is an abundant number, since it is smaller than the sum of its proper divisors (29283552641720).

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

20132442440440 is a wasteful number, since it uses less digits than its factorization.

20132442440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45755551023 (or 45755551019 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 20132442440440 its reverse (4404424423102), we get a palindrome (24536866863542).

The spelling of 20132442440440 in words is "twenty trillion, one hundred thirty-two billion, four hundred forty-two million, four hundred forty thousand, four hundred forty".