343444109 has 4 divisors (see below), whose sum is σ = 343631904. Its totient is φ = 343256316.

The previous prime is 343444099. The next prime is 343444121. The reversal of 343444109 is 901444343.

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 an emirpimes, since its reverse is a distinct semiprime: 901444343 = 919 ⋅980897.

It is a cyclic number.

It is not a de Polignac number, because 343444109 - 2⁴ = 343444093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343444159) 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, 91127 + ... + 94820.

It is an arithmetic number, because the mean of its divisors is an integer number (85907976).

Almost surely, 2^343444109 is an apocalyptic number.

It is an amenable number.

343444109 is a deficient number, since it is larger than the sum of its proper divisors (187795).

343444109 is a wasteful number, since it uses less digits than its factorization.

343444109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187794.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 343444109 is about 18532.2451149341. The cubic root of 343444109 is about 700.3019846691.

The spelling of 343444109 in words is "three hundred forty-three million, four hundred forty-four thousand, one hundred nine".