22344450 has 48 divisors (see below), whose sum is σ = 55788096. Its totient is φ = 5918400.

The previous prime is 22344419. The next prime is 22344451. The reversal of 22344450 is 5444322.

It is a self number, because there is not a number n which added to its sum of digits gives 22344450.

It is not an unprimeable number, because it can be changed into a prime (22344451) 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 23 ways as a sum of consecutive naturals, for example, 26739 + ... + 27561.

It is an arithmetic number, because the mean of its divisors is an integer number (1162252).

Almost surely, 2^22344450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22344450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27894048).

22344450 is an abundant number, since it is smaller than the sum of its proper divisors (33443646).

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

22344450 is a wasteful number, since it uses less digits than its factorization.

22344450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 22344450 is about 4726.9916437413. The cubic root of 22344450 is about 281.6587341035.

Adding to 22344450 its reverse (5444322), we get a palindrome (27788772).

The spelling of 22344450 in words is "twenty-two million, three hundred forty-four thousand, four hundred fifty".