344009 has 4 divisors (see below), whose sum is σ = 345216. Its totient is φ = 342804.

The previous prime is 343997. The next prime is 344017. The reversal of 344009 is 900443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344009 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 344009.

It is not an unprimeable number, because it can be changed into a prime (344039) 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, 92 + ... + 834.

It is an arithmetic number, because the mean of its divisors is an integer number (86304).

2³⁴⁴⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

344009 is a deficient number, since it is larger than the sum of its proper divisors (1207).

344009 is an equidigital number, since it uses as much as digits as its factorization.

344009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 344009 is about 586.5228043307. The cubic root of 344009 is about 70.0685722602.

The spelling of 344009 in words is "three hundred forty-four thousand, nine".