20222622 has 80 divisors (see below), whose sum is σ = 54885600. Its totient is φ = 5432832.

The previous prime is 20222621. The next prime is 20222689. The reversal of 20222622 is 22622202.

20222622 is a `hidden beast` number, since 20 + 2 + 22 + 622 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20222595 and 20222604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222621) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18754 + ... + 19802.

It is an arithmetic number, because the mean of its divisors is an integer number (686070).

Almost surely, 2^20222622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20222622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27442800).

20222622 is an abundant number, since it is smaller than the sum of its proper divisors (34662978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20222622 is a wasteful number, since it uses less digits than its factorization.

20222622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20222622 is about 4496.9569711084. The cubic root of 20222622 is about 272.4451961724.

Adding to 20222622 its reverse (22622202), we get a palindrome (42844824).

The spelling of 20222622 in words is "twenty million, two hundred twenty-two thousand, six hundred twenty-two".