20440233224000 has 56 divisors (see below), whose sum is σ = 50620237599048. Its totient is φ = 8176093286400.

The previous prime is 20440233223979. The next prime is 20440233224003. The reversal of 20440233224000 is 42233204402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44315302144 + 20395917921856 = 210512^2 + 4516184^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440233224003) 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, 1277506577 + ... + 1277522576.

Almost surely, 2^{20440233224000} is an apocalyptic number.

20440233224000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20440233224000 is an abundant number, since it is smaller than the sum of its proper divisors (30180004375048).

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

20440233224000 is an equidigital number, since it uses as much as digits as its factorization.

20440233224000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555029180 (or 2555029160 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 20440233224000 its reverse (42233204402), we get a palindrome (20482466428402).

The spelling of 20440233224000 in words is "twenty trillion, four hundred forty billion, two hundred thirty-three million, two hundred twenty-four thousand".