22242020 has 24 divisors (see below), whose sum is σ = 46927104. Its totient is φ = 8855136.

The previous prime is 22242019. The next prime is 22242023. The reversal of 22242020 is 2024222.

It is a junction number, because it is equal to n+sod(n) for n = 22241986 and 22242004.

It is not an unprimeable number, because it can be changed into a prime (22242023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1967 + ... + 6953.

It is an arithmetic number, because the mean of its divisors is an integer number (1955296).

Almost surely, 2^22242020 is an apocalyptic number.

22242020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22242020 is an abundant number, since it is smaller than the sum of its proper divisors (24685084).

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

22242020 is a wasteful number, since it uses less digits than its factorization.

22242020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5219 (or 5217 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 22242020 is about 4716.1446118625. The cubic root of 22242020 is about 281.2276874480.

Adding to 22242020 its reverse (2024222), we get a palindrome (24266242).

The spelling of 22242020 in words is "twenty-two million, two hundred forty-two thousand, twenty".