344444321 has 8 divisors (see below), whose sum is σ = 379987944. Its totient is φ = 310193280.

The previous prime is 344444299. The next prime is 344444323. The reversal of 344444321 is 123444443.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4558225 + 339886096 = 2135^2 + 18436^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344444321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344444323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322586 + ... + 323651.

It is an arithmetic number, because the mean of its divisors is an integer number (47498493).

Almost surely, 2^344444321 is an apocalyptic number.

It is an amenable number.

344444321 is a deficient number, since it is larger than the sum of its proper divisors (35543623).

344444321 is a wasteful number, since it uses less digits than its factorization.

344444321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646291.

The product of its digits is 18432, while the sum is 29.

The square root of 344444321 is about 18559.2112170749. The cubic root of 344444321 is about 700.9811554129.

Adding to 344444321 its reverse (123444443), we get a palindrome (467888764).

The spelling of 344444321 in words is "three hundred forty-four million, four hundred forty-four thousand, three hundred twenty-one".