20444120450 has 24 divisors (see below), whose sum is σ = 40951147188. Its totient is φ = 7548598080.

The previous prime is 20444120449. The next prime is 20444120471. The reversal of 20444120450 is 5402144402.

It can be written as a sum of positive squares in 6 ways, for example, as 82828201 + 20361292249 = 9101^2 + 142693^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15725597 + ... + 15726896.

Almost surely, 2^20444120450 is an apocalyptic number.

20444120450 is an abundant number, since it is smaller than the sum of its proper divisors (20507026738).

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

20444120450 is a wasteful number, since it uses less digits than its factorization.

20444120450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31452518 (or 31452513 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 20444120450 its reverse (5402144402), we get a palindrome (25846264852).

The spelling of 20444120450 in words is "twenty billion, four hundred forty-four million, one hundred twenty thousand, four hundred fifty".