22099328 has 32 divisors (see below), whose sum is σ = 45110520. Its totient is φ = 10777600.

The previous prime is 22099327. The next prime is 22099339. The reversal of 22099328 is 82399022.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22099321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3143 + ... + 7353.

Almost surely, 2^22099328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22099328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22555260).

22099328 is an abundant number, since it is smaller than the sum of its proper divisors (23011192).

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

22099328 is an equidigital number, since it uses as much as digits as its factorization.

22099328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266 (or 4254 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 22099328 is about 4700.9922356881. The cubic root of 22099328 is about 280.6249984375.

The spelling of 22099328 in words is "twenty-two million, ninety-nine thousand, three hundred twenty-eight".