22020630 has 16 divisors (see below), whose sum is σ = 52849584. Its totient is φ = 5872160.

The previous prime is 22020623. The next prime is 22020631. The reversal of 22020630 is 3602022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366981 + ... + 367040.

It is an arithmetic number, because the mean of its divisors is an integer number (3303099).

Almost surely, 2^22020630 is an apocalyptic number.

22020630 is an abundant number, since it is smaller than the sum of its proper divisors (30828954).

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

22020630 is a wasteful number, since it uses less digits than its factorization.

22020630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734031.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 22020630 is about 4692.6144098999. The cubic root of 22020630 is about 280.2914906595.

Adding to 22020630 its reverse (3602022), we get a palindrome (25622652).

The spelling of 22020630 in words is "twenty-two million, twenty thousand, six hundred thirty".