344423405 has 8 divisors (see below), whose sum is σ = 413493984. Its totient is φ = 275414800.

The previous prime is 344423389. The next prime is 344423419. The reversal of 344423405 is 504324443.

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

It is not a de Polignac number, because 344423405 - 2⁴ = 344423389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2231 + ... + 26340.

It is an arithmetic number, because the mean of its divisors is an integer number (51686748).

Almost surely, 2^344423405 is an apocalyptic number.

It is an amenable number.

344423405 is a deficient number, since it is larger than the sum of its proper divisors (69070579).

344423405 is a wasteful number, since it uses less digits than its factorization.

344423405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30987.

The product of its (nonzero) digits is 23040, while the sum is 29.

The square root of 344423405 is about 18558.6477147447. The cubic root of 344423405 is about 700.9669663575.

Adding to 344423405 its reverse (504324443), we get a palindrome (848747848).

The spelling of 344423405 in words is "three hundred forty-four million, four hundred twenty-three thousand, four hundred five".