340680 has 64 divisors (see below), whose sum is σ = 1088640. Its totient is φ = 84992.

The previous prime is 340661. The next prime is 340687. The reversal of 340680 is 86043.

It is not an unprimeable number, because it can be changed into a prime (340687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1957 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (17010).

2³⁴⁰⁶⁸⁰ is an apocalyptic number.

340680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544320).

340680 is an abundant number, since it is smaller than the sum of its proper divisors (747960).

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

340680 is a wasteful number, since it uses less digits than its factorization.

340680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 194 counting only the distinct ones).

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

The square root of 340680 is about 583.6779934176. The cubic root of 340680 is about 69.8418196970.

It can be divided in two parts, 3406 and 80, that added together give a triangular number (3486 = T₈₃).

The spelling of 340680 in words is "three hundred forty thousand, six hundred eighty".