344412321 has 16 divisors (see below), whose sum is σ = 507829440. Its totient is φ = 205873920.

The previous prime is 344412311. The next prime is 344412329. The reversal of 344412321 is 123214443.

It is not a de Polignac number, because 344412321 - 2¹¹ = 344410273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 344412291 and 344412300.

It is not an unprimeable number, because it can be changed into a prime (344412329) 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, 69076 + ... + 73893.

It is an arithmetic number, because the mean of its divisors is an integer number (31739340).

Almost surely, 2^344412321 is an apocalyptic number.

It is an amenable number.

344412321 is a deficient number, since it is larger than the sum of its proper divisors (163417119).

344412321 is a wasteful number, since it uses less digits than its factorization.

344412321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143056.

The product of its digits is 2304, while the sum is 24.

The square root of 344412321 is about 18558.3490914467. The cubic root of 344412321 is about 700.9594469293.

Adding to 344412321 its reverse (123214443), we get a palindrome (467626764).

The spelling of 344412321 in words is "three hundred forty-four million, four hundred twelve thousand, three hundred twenty-one".