20460420444 has 12 divisors (see below), whose sum is σ = 47740981064. Its totient is φ = 6820140144.

The previous prime is 20460420419. The next prime is 20460420479. The reversal of 20460420444 is 44402406402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852517507 + ... + 852517530.

Almost surely, 2^20460420444 is an apocalyptic number.

It is an amenable number.

20460420444 is an abundant number, since it is smaller than the sum of its proper divisors (27280560620).

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

20460420444 is a wasteful number, since it uses less digits than its factorization.

20460420444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705035044 (or 1705035042 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 20460420444 its reverse (44402406402), we get a palindrome (64862826846).

The spelling of 20460420444 in words is "twenty billion, four hundred sixty million, four hundred twenty thousand, four hundred forty-four".