340806 has 16 divisors (see below), whose sum is σ = 691200. Its totient is φ = 112008.

The previous prime is 340801. The next prime is 340811. The reversal of 340806 is 608043.

340806 is nontrivially palindromic in base 15.

It is an interprime number because it is at equal distance from previous prime (340801) and next prime (340811).

It is a super-2 number, since 2×340806² = 232297459272, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115 + ... + 833.

It is an arithmetic number, because the mean of its divisors is an integer number (43200).

2³⁴⁰⁸⁰⁶ is an apocalyptic number.

340806 is an abundant number, since it is smaller than the sum of its proper divisors (350394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340806 is a wasteful number, since it uses less digits than its factorization.

340806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 340806 is about 583.7859196658. The cubic root of 340806 is about 69.8504289340.

Adding to 340806 its reverse (608043), we get a palindrome (948849).

It can be divided in two parts, 34080 and 6, that multiplied together give a triangular number (204480 = T₆₃₉).

The spelling of 340806 in words is "three hundred forty thousand, eight hundred six".