22443020 has 24 divisors (see below), whose sum is σ = 47401200. Its totient is φ = 8925632.

The previous prime is 22443011. The next prime is 22443023. The reversal of 22443020 is 2034422.

It is a self number, because there is not a number n which added to its sum of digits gives 22443020.

It is not an unprimeable number, because it can be changed into a prime (22443023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446 + ... + 6714.

It is an arithmetic number, because the mean of its divisors is an integer number (1975050).

Almost surely, 2^22443020 is an apocalyptic number.

22443020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22443020 is an abundant number, since it is smaller than the sum of its proper divisors (24958180).

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

22443020 is a wasteful number, since it uses less digits than its factorization.

22443020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6457 (or 6455 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 22443020 is about 4737.4064634566. The cubic root of 22443020 is about 282.0722950637.

Adding to 22443020 its reverse (2034422), we get a palindrome (24477442).

The spelling of 22443020 in words is "twenty-two million, four hundred forty-three thousand, twenty".