344420423 has 4 divisors (see below), whose sum is σ = 359395248. Its totient is φ = 329445600.

The previous prime is 344420389. The next prime is 344420431. The reversal of 344420423 is 324024443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324024443 = 73 ⋅4438691.

It is a cyclic number.

It is not a de Polignac number, because 344420423 - 2⁶ = 344420359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344420392 and 344420401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344420473) 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 3 ways as a sum of consecutive naturals, for example, 7487378 + ... + 7487423.

It is an arithmetic number, because the mean of its divisors is an integer number (89848812).

Almost surely, 2^344420423 is an apocalyptic number.

344420423 is a deficient number, since it is larger than the sum of its proper divisors (14974825).

344420423 is a wasteful number, since it uses less digits than its factorization.

344420423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14974824.

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 344420423 is about 18558.5673746655. The cubic root of 344420423 is about 700.9649433731.

Adding to 344420423 its reverse (324024443), we get a palindrome (668444866).

The spelling of 344420423 in words is "three hundred forty-four million, four hundred twenty thousand, four hundred twenty-three".