20404244422 has 16 divisors (see below), whose sum is σ = 30958578144. Its totient is φ = 10085040000.

The previous prime is 20404244417. The next prime is 20404244437. The reversal of 20404244422 is 22444240402.

It is a super-2 number, since 2×20404244422² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47422 + ... + 207502.

It is an arithmetic number, because the mean of its divisors is an integer number (1934911134).

Almost surely, 2^20404244422 is an apocalyptic number.

20404244422 is a deficient number, since it is larger than the sum of its proper divisors (10554333722).

20404244422 is a wasteful number, since it uses less digits than its factorization.

20404244422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160815.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 20404244422 its reverse (22444240402), we get a palindrome (42848484824).

The spelling of 20404244422 in words is "twenty billion, four hundred four million, two hundred forty-four thousand, four hundred twenty-two".