22423344 has 80 divisors (see below), whose sum is σ = 63686400. Its totient is φ = 6766848.

The previous prime is 22423343. The next prime is 22423361. The reversal of 22423344 is 44332422.

It is a super-2 number, since 2×22423344² = 1005612712284672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22423343) 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 15 ways as a sum of consecutive naturals, for example, 20442 + ... + 21510.

It is an arithmetic number, because the mean of its divisors is an integer number (796080).

Almost surely, 2^22423344 is an apocalyptic number.

22423344 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 22423344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31843200).

22423344 is an abundant number, since it is smaller than the sum of its proper divisors (41263056).

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

22423344 is a wasteful number, since it uses less digits than its factorization.

22423344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122 (or 1116 counting only the distinct ones).

The product of its digits is 4608, while the sum is 24.

The square root of 22423344 is about 4735.3293444068. The cubic root of 22423344 is about 281.9898391792.

Adding to 22423344 its reverse (44332422), we get a palindrome (66755766).

The spelling of 22423344 in words is "twenty-two million, four hundred twenty-three thousand, three hundred forty-four".