340918 has 16 divisors (see below), whose sum is σ = 558144. Its totient is φ = 155520.

The previous prime is 340913. The next prime is 340919. The reversal of 340918 is 819043.

340918 is a modest number, since divided by 918 gives 340 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 340892 and 340901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340913) by changing a digit.

340918 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123 + ... + 1393.

It is an arithmetic number, because the mean of its divisors is an integer number (34884).

2³⁴⁰⁹¹⁸ is an apocalyptic number.

340918 is a deficient number, since it is larger than the sum of its proper divisors (217226).

340918 is a wasteful number, since it uses less digits than its factorization.

340918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 340918 is about 583.8818373610. The cubic root of 340918 is about 69.8580798080.

The spelling of 340918 in words is "three hundred forty thousand, nine hundred eighteen".