20004422 has 16 divisors (see below), whose sum is σ = 31173120. Its totient is φ = 9620808.

The previous prime is 20004419. The next prime is 20004431. The reversal of 20004422 is 22440002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20004397 and 20004406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3743 + ... + 7349.

It is an arithmetic number, because the mean of its divisors is an integer number (1948320).

Almost surely, 2^20004422 is an apocalyptic number.

20004422 is a deficient number, since it is larger than the sum of its proper divisors (11168698).

20004422 is a wasteful number, since it uses less digits than its factorization.

20004422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 20004422 is about 4472.6303223048. The cubic root of 20004422 is about 271.4617654431.

Adding to 20004422 its reverse (22440002), we get a palindrome (42444424).

The spelling of 20004422 in words is "twenty million, four thousand, four hundred twenty-two".