20444040444 has 48 divisors (see below), whose sum is σ = 49208544896. Its totient is φ = 6602904000.

The previous prime is 20444040437. The next prime is 20444040467. The reversal of 20444040444 is 44404044402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159382 + ... + 257469.

Almost surely, 2^20444040444 is an apocalyptic number.

It is an amenable number.

20444040444 is an abundant number, since it is smaller than the sum of its proper divisors (28764504452).

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

20444040444 is a wasteful number, since it uses less digits than its factorization.

20444040444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416986 (or 416984 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 20444040444 its reverse (44404044402), we get a palindrome (64848084846).

The spelling of 20444040444 in words is "twenty billion, four hundred forty-four million, forty thousand, four hundred forty-four".