20163622 has 8 divisors (see below), whose sum is σ = 30659976. Its totient is φ = 9943632.

The previous prime is 20163593. The next prime is 20163623. The reversal of 20163622 is 22636102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20163593 and 20163602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20163623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68908 + ... + 69199.

It is an arithmetic number, because the mean of its divisors is an integer number (3832497).

Almost surely, 2^20163622 is an apocalyptic number.

20163622 is a deficient number, since it is larger than the sum of its proper divisors (10496354).

20163622 is a wasteful number, since it uses less digits than its factorization.

20163622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138182.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20163622 is about 4490.3921877716. The cubic root of 20163622 is about 272.1799828828.

Adding to 20163622 its reverse (22636102), we get a palindrome (42799724).

The spelling of 20163622 in words is "twenty million, one hundred sixty-three thousand, six hundred twenty-two".