20440033441240 has 32 divisors (see below), whose sum is σ = 52560085992480. Its totient is φ = 7008011465472.

The previous prime is 20440033441189. The next prime is 20440033441273. The reversal of 20440033441240 is 4214433004402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36500059437 + ... + 36500059996.

It is an arithmetic number, because the mean of its divisors is an integer number (1642502687265).

Almost surely, 2^{20440033441240} is an apocalyptic number.

20440033441240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20440033441240 is an abundant number, since it is smaller than the sum of its proper divisors (32120052551240).

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

20440033441240 is a wasteful number, since it uses less digits than its factorization.

20440033441240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73000119451 (or 73000119447 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 20440033441240 its reverse (4214433004402), we get a palindrome (24654466445642).

The spelling of 20440033441240 in words is "twenty trillion, four hundred forty billion, thirty-three million, four hundred forty-one thousand, two hundred forty".