22353220344 has 384 divisors, whose sum is σ = 72352051200. Its totient is φ = 5628579840.

The previous prime is 22353220303. The next prime is 22353220369. The reversal of 22353220344 is 44302235322.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 95936452 + ... + 95936684.

It is an arithmetic number, because the mean of its divisors is an integer number (188416800).

Almost surely, 2^22353220344 is an apocalyptic number.

22353220344 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 22353220344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36176025600).

22353220344 is an abundant number, since it is smaller than the sum of its proper divisors (49998830856).

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

22353220344 is a wasteful number, since it uses less digits than its factorization.

22353220344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 22353220344 its reverse (44302235322), we get a palindrome (66655455666).

The spelling of 22353220344 in words is "twenty-two billion, three hundred fifty-three million, two hundred twenty thousand, three hundred forty-four".