20224404443 has 4 divisors (see below), whose sum is σ = 20234041800. Its totient is φ = 20214767088.

The previous prime is 20224404439. The next prime is 20224404481. The reversal of 20224404443 is 34440442202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20224404443 - 2² = 20224404439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20224404493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4815530 + ... + 4819727.

It is an arithmetic number, because the mean of its divisors is an integer number (5058510450).

Almost surely, 2^20224404443 is an apocalyptic number.

20224404443 is a deficient number, since it is larger than the sum of its proper divisors (9637357).

20224404443 is an equidigital number, since it uses as much as digits as its factorization.

20224404443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9637356.

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 20224404443 its reverse (34440442202), we get a palindrome (54664846645).

The spelling of 20224404443 in words is "twenty billion, two hundred twenty-four million, four hundred four thousand, four hundred forty-three".