344389 has 4 divisors (see below), whose sum is σ = 346060. Its totient is φ = 342720.

The previous prime is 344371. The next prime is 344417. The reversal of 344389 is 983443.

344389 is nontrivially palindromic in base 16.

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 128164 + 216225 = 358^2 + 465^2 .

It is a cyclic number.

It is not a de Polignac number, because 344389 - 2¹¹ = 342341 is a prime.

It is a d-powerful number, because it can be written as 3⁵ + 4⁷ + 3¹⁰ + 4⁹ + 8 + 9⁴ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 344389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474 + ... + 955.

It is an arithmetic number, because the mean of its divisors is an integer number (86515).

2³⁴⁴³⁸⁹ is an apocalyptic number.

It is an amenable number.

344389 is a deficient number, since it is larger than the sum of its proper divisors (1671).

344389 is a wasteful number, since it uses less digits than its factorization.

344389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670.

The product of its digits is 10368, while the sum is 31.

The square root of 344389 is about 586.8466579951. The cubic root of 344389 is about 70.0943625346.

The spelling of 344389 in words is "three hundred forty-four thousand, three hundred eighty-nine".