22453344 has 72 divisors (see below), whose sum is σ = 65100672. Its totient is φ = 7338240.

The previous prime is 22453303. The next prime is 22453349. The reversal of 22453344 is 44335422.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22453349) 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 11 ways as a sum of consecutive naturals, for example, 14529 + ... + 15999.

It is an arithmetic number, because the mean of its divisors is an integer number (904176).

Almost surely, 2^22453344 is an apocalyptic number.

22453344 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 22453344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32550336).

22453344 is an abundant number, since it is smaller than the sum of its proper divisors (42647328).

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

22453344 is a wasteful number, since it uses less digits than its factorization.

22453344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540 (or 1529 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 22453344 is about 4738.4959639109. The cubic root of 22453344 is about 282.1155404017.

Adding to 22453344 its reverse (44335422), we get a palindrome (66788766).

The spelling of 22453344 in words is "twenty-two million, four hundred fifty-three thousand, three hundred forty-four".