20040400404422 has 32 divisors (see below), whose sum is σ = 31411452231360. Its totient is φ = 9571138790400.

The previous prime is 20040400404419. The next prime is 20040400404439. The reversal of 20040400404422 is 22440400404002.

It is a super-2 number, since 2×20040400404422² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20040400404391 and 20040400404400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248288672 + ... + 248369372.

It is an arithmetic number, because the mean of its divisors is an integer number (981607882230).

Almost surely, 2^{20040400404422} is an apocalyptic number.

20040400404422 is a deficient number, since it is larger than the sum of its proper divisors (11371051826938).

20040400404422 is a wasteful number, since it uses less digits than its factorization.

20040400404422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88208.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20040400404422 its reverse (22440400404002), we get a palindrome (42480800808424).

The spelling of 20040400404422 in words is "twenty trillion, forty billion, four hundred million, four hundred four thousand, four hundred twenty-two".