344223321 has 16 divisors (see below), whose sum is σ = 507630144. Its totient is φ = 206103744.

The previous prime is 344223317. The next prime is 344223337. The reversal of 344223321 is 123322443.

It is not a de Polignac number, because 344223321 - 2² = 344223317 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 344223291 and 344223300.

It is not an unprimeable number, because it can be changed into a prime (344223311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117831 + ... + 120716.

It is an arithmetic number, because the mean of its divisors is an integer number (31726884).

Almost surely, 2^344223321 is an apocalyptic number.

It is an amenable number.

344223321 is a deficient number, since it is larger than the sum of its proper divisors (163406823).

344223321 is a wasteful number, since it uses less digits than its factorization.

344223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238600.

The product of its digits is 3456, while the sum is 24.

The square root of 344223321 is about 18553.2563449115. The cubic root of 344223321 is about 700.8312037662.

Adding to 344223321 its reverse (123322443), we get a palindrome (467545764).

The spelling of 344223321 in words is "three hundred forty-four million, two hundred twenty-three thousand, three hundred twenty-one".