22201344 has 176 divisors, whose sum is σ = 72709440. Its totient is φ = 6635520.

The previous prime is 22201331. The next prime is 22201349. The reversal of 22201344 is 44310222.

It is a tau number, because it is divible by the number of its divisors (176).

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

It is not an unprimeable number, because it can be changed into a prime (22201349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304092 + ... + 304164.

Almost surely, 2^22201344 is an apocalyptic number.

22201344 is a gapful number since it is divisible by the number (24) 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 22201344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36354720).

22201344 is an abundant number, since it is smaller than the sum of its proper divisors (50508096).

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

22201344 is a wasteful number, since it uses less digits than its factorization.

22201344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 22201344 is about 4711.8302176543. The cubic root of 22201344 is about 281.0561473058.

Adding to 22201344 its reverse (44310222), we get a palindrome (66511566).

The spelling of 22201344 in words is "twenty-two million, two hundred one thousand, three hundred forty-four".