340258 has 8 divisors (see below), whose sum is σ = 518940. Its totient is φ = 167280.

The previous prime is 340237. The next prime is 340261. The reversal of 340258 is 852043.

It can be written as a sum of positive squares in 2 ways, for example, as 321489 + 18769 = 567^2 + 137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 12.

It is an unprimeable number.

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, 1273 + ... + 1516.

2³⁴⁰²⁵⁸ is an apocalyptic number.

340258 is a deficient number, since it is larger than the sum of its proper divisors (178682).

340258 is a wasteful number, since it uses less digits than its factorization.

340258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 340258 is about 583.3163807060. The cubic root of 340258 is about 69.8129701160.

The spelling of 340258 in words is "three hundred forty thousand, two hundred fifty-eight".