340555 has 4 divisors (see below), whose sum is σ = 408672. Its totient is φ = 272440.

The previous prime is 340541. The next prime is 340559. The reversal of 340555 is 555043.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-340555 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

340555 is a modest number, since divided by 555 gives 340 as remainder.

It is not an unprimeable number, because it can be changed into a prime (340559) 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, 34051 + ... + 34060.

It is an arithmetic number, because the mean of its divisors is an integer number (102168).

2³⁴⁰⁵⁵⁵ is an apocalyptic number.

340555 is a deficient number, since it is larger than the sum of its proper divisors (68117).

340555 is an equidigital number, since it uses as much as digits as its factorization.

340555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68116.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 340555 is about 583.5709040040. The cubic root of 340555 is about 69.8332766895.

Adding to 340555 its reverse (555043), we get a palindrome (895598).

The spelling of 340555 in words is "three hundred forty thousand, five hundred fifty-five".