344666443 has 16 divisors (see below), whose sum is σ = 382279680. Its totient is φ = 310713480.

The previous prime is 344666429. The next prime is 344666453.

It is a happy number.

344666443 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 344666443 - 2⁵ = 344666411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344666396 and 344666405.

It is not an unprimeable number, because it can be changed into a prime (344666453) 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 15 ways as a sum of consecutive naturals, for example, 168018 + ... + 170056.

It is an arithmetic number, because the mean of its divisors is an integer number (23892480).

Almost surely, 2^344666443 is an apocalyptic number.

344666443 is a deficient number, since it is larger than the sum of its proper divisors (37613237).

344666443 is a wasteful number, since it uses less digits than its factorization.

344666443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199 (or 2177 counting only the distinct ones).

The product of its digits is 497664, while the sum is 40.

The square root of 344666443 is about 18565.1943970431. The cubic root of 344666443 is about 701.1318037366.

The spelling of 344666443 in words is "three hundred forty-four million, six hundred sixty-six thousand, four hundred forty-three".