20163422 has 4 divisors (see below), whose sum is σ = 30245136. Its totient is φ = 10081710.

The previous prime is 20163397. The next prime is 20163443. The reversal of 20163422 is 22436102.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20163394 and 20163403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5040854 + ... + 5040857.

It is an arithmetic number, because the mean of its divisors is an integer number (7561284).

Almost surely, 2^20163422 is an apocalyptic number.

20163422 is a deficient number, since it is larger than the sum of its proper divisors (10081714).

20163422 is a wasteful number, since it uses less digits than its factorization.

20163422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081713.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20163422 is about 4490.3699179466. The cubic root of 20163422 is about 272.1790829754.

Adding to 20163422 its reverse (22436102), we get a palindrome (42599524).

The spelling of 20163422 in words is "twenty million, one hundred sixty-three thousand, four hundred twenty-two".