341918909 has 4 divisors (see below), whose sum is σ = 362031804. Its totient is φ = 321806016.

The previous prime is 341918893. The next prime is 341918923. The reversal of 341918909 is 909819143.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 909819143 = 89 ⋅10222687.

It can be written as a sum of positive squares in 2 ways, for example, as 263153284 + 78765625 = 16222^2 + 8875^2 .

It is a cyclic number.

It is not a de Polignac number, because 341918909 - 2⁴ = 341918893 is a prime.

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 341918909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (341918999) 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, 10056422 + ... + 10056455.

It is an arithmetic number, because the mean of its divisors is an integer number (90507951).

Almost surely, 2^341918909 is an apocalyptic number.

It is an amenable number.

341918909 is a deficient number, since it is larger than the sum of its proper divisors (20112895).

341918909 is a wasteful number, since it uses less digits than its factorization.

341918909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20112894.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 341918909 is about 18491.0494293861. The cubic root of 341918909 is about 699.2637899238.

The spelling of 341918909 in words is "three hundred forty-one million, nine hundred eighteen thousand, nine hundred nine".