20023622 has 8 divisors (see below), whose sum is σ = 30131136. Its totient is φ = 9979912.

The previous prime is 20023609. The next prime is 20023643. The reversal of 20023622 is 22632002.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20023622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15158 + ... + 16425.

It is an arithmetic number, because the mean of its divisors is an integer number (3766392).

Almost surely, 2^20023622 is an apocalyptic number.

20023622 is a deficient number, since it is larger than the sum of its proper divisors (10107514).

20023622 is a wasteful number, since it uses less digits than its factorization.

20023622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31902.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20023622 is about 4474.7761955208. The cubic root of 20023622 is about 271.5485862353.

Adding to 20023622 its reverse (22632002), we get a palindrome (42655624).

The spelling of 20023622 in words is "twenty million, twenty-three thousand, six hundred twenty-two".