20440040024000 has 112 divisors (see below), whose sum is σ = 51796963691616. Its totient is φ = 7985875968000.

The previous prime is 20440040023969. The next prime is 20440040024029. The reversal of 20440040024000 is 42004004402.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29365361 + ... + 30053360.

Almost surely, 2^{20440040024000} is an apocalyptic number.

20440040024000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20440040024000 is an abundant number, since it is smaller than the sum of its proper divisors (31356923667616).

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

20440040024000 is an equidigital number, since it uses as much as digits as its factorization.

20440040024000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59418791 (or 59418771 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20440040024000 its reverse (42004004402), we get a palindrome (20482044028402).

The spelling of 20440040024000 in words is "twenty trillion, four hundred forty billion, forty million, twenty-four thousand".