20204422 has 16 divisors (see below), whose sum is σ = 34744320. Its totient is φ = 8632008.

The previous prime is 20204417. The next prime is 20204477. The reversal of 20204422 is 22440202.

It is a junction number, because it is equal to n+sod(n) for n = 20204396 and 20204405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2779 + ... + 6937.

It is an arithmetic number, because the mean of its divisors is an integer number (2171520).

Almost surely, 2^20204422 is an apocalyptic number.

20204422 is a deficient number, since it is larger than the sum of its proper divisors (14539898).

20204422 is a wasteful number, since it uses less digits than its factorization.

20204422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 20204422 is about 4494.9329249723. The cubic root of 20204422 is about 272.3634396980.

Adding to 20204422 its reverse (22440202), we get a palindrome (42644624).

The spelling of 20204422 in words is "twenty million, two hundred four thousand, four hundred twenty-two".