344224321 has 8 divisors (see below), whose sum is σ = 397820160. Its totient is φ = 291733728.

The previous prime is 344224319. The next prime is 344224337. The reversal of 344224321 is 123422443.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 344224321 - 2¹ = 344224319 is a prime.

It is a super-2 number, since 2×344224321² = 236980766335822082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344224301) 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, 275641 + ... + 276886.

It is an arithmetic number, because the mean of its divisors is an integer number (49727520).

Almost surely, 2^344224321 is an apocalyptic number.

It is an amenable number.

344224321 is a deficient number, since it is larger than the sum of its proper divisors (53595839).

344224321 is an equidigital number, since it uses as much as digits as its factorization.

344224321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552623.

The product of its digits is 4608, while the sum is 25.

The square root of 344224321 is about 18553.2832943390. The cubic root of 344224321 is about 700.8318824250.

Adding to 344224321 its reverse (123422443), we get a palindrome (467646764).

The spelling of 344224321 in words is "three hundred forty-four million, two hundred twenty-four thousand, three hundred twenty-one".