22020750 has 48 divisors (see below), whose sum is σ = 59550192. Its totient is φ = 5871600.

The previous prime is 22020749. The next prime is 22020751. The reversal of 22020750 is 5702022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22020749) and next prime (22020751).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2644 + ... + 7143.

It is an arithmetic number, because the mean of its divisors is an integer number (1240629).

Almost surely, 2^22020750 is an apocalyptic number.

22020750 is an abundant number, since it is smaller than the sum of its proper divisors (37529442).

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

22020750 is a wasteful number, since it uses less digits than its factorization.

22020750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9810 (or 9797 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 22020750 is about 4692.6271959319. The cubic root of 22020750 is about 280.2919998020.

Adding to 22020750 its reverse (5702022), we get a palindrome (27722772).

The spelling of 22020750 in words is "twenty-two million, twenty thousand, seven hundred fifty".