22005852 has 48 divisors (see below), whose sum is σ = 57332352. Its totient is φ = 6511680.

The previous prime is 22005833. The next prime is 22005853. The reversal of 22005852 is 25850022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22005853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3738 + ... + 7614.

It is an arithmetic number, because the mean of its divisors is an integer number (1194424).

Almost surely, 2^22005852 is an apocalyptic number.

22005852 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22005852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28666176).

22005852 is an abundant number, since it is smaller than the sum of its proper divisors (35326500).

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

22005852 is a wasteful number, since it uses less digits than its factorization.

22005852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938 (or 3936 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 22005852 is about 4691.0395436406. The cubic root of 22005852 is about 280.2287756117.

Adding to 22005852 its reverse (25850022), we get a palindrome (47855874).

The spelling of 22005852 in words is "twenty-two million, five thousand, eight hundred fifty-two".