344420005 has 4 divisors (see below), whose sum is σ = 413304012. Its totient is φ = 275536000.

The previous prime is 344420003. The next prime is 344420033. The reversal of 344420005 is 500024443.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78110244 + 266309761 = 8838^2 + 16319^2 .

It is not a de Polignac number, because 344420005 - 2¹ = 344420003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344420003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34441996 + ... + 34442005.

It is an arithmetic number, because the mean of its divisors is an integer number (103326003).

Almost surely, 2^344420005 is an apocalyptic number.

It is an amenable number.

344420005 is a deficient number, since it is larger than the sum of its proper divisors (68884007).

344420005 is an equidigital number, since it uses as much as digits as its factorization.

344420005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68884006.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 344420005 is about 18558.5561130170. The cubic root of 344420005 is about 700.9646598016.

Adding to 344420005 its reverse (500024443), we get a palindrome (844444448).

The spelling of 344420005 in words is "three hundred forty-four million, four hundred twenty thousand, five".