20444423422 has 16 divisors (see below), whose sum is σ = 31874475600. Its totient is φ = 9822939840.

The previous prime is 20444423411. The next prime is 20444423429. The reversal of 20444423422 is 22432444402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444423429) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 823047 + ... + 847522.

It is an arithmetic number, because the mean of its divisors is an integer number (1992154725).

Almost surely, 2^20444423422 is an apocalyptic number.

20444423422 is a deficient number, since it is larger than the sum of its proper divisors (11430052178).

20444423422 is a wasteful number, since it uses less digits than its factorization.

20444423422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670811.

The product of its (nonzero) digits is 49152, while the sum is 31.

Adding to 20444423422 its reverse (22432444402), we get a palindrome (42876867824).

The spelling of 20444423422 in words is "twenty billion, four hundred forty-four million, four hundred twenty-three thousand, four hundred twenty-two".