340580 has 12 divisors (see below), whose sum is σ = 715260. Its totient is φ = 136224.

The previous prime is 340579. The next prime is 340583. The reversal of 340580 is 85043.

It can be written as a sum of positive squares in 2 ways, for example, as 200704 + 139876 = 448^2 + 374^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 17029 = 340580 / (3 + 4 + 0 + 5 + 8 + 0).

It is not an unprimeable number, because it can be changed into a prime (340583) 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, 8495 + ... + 8534.

It is an arithmetic number, because the mean of its divisors is an integer number (59605).

2³⁴⁰⁵⁸⁰ is an apocalyptic number.

It is an amenable number.

340580 is an abundant number, since it is smaller than the sum of its proper divisors (374680).

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

340580 is a wasteful number, since it uses less digits than its factorization.

340580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17038 (or 17036 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 340580 is about 583.5923234588. The cubic root of 340580 is about 69.8349854582.

The spelling of 340580 in words is "three hundred forty thousand, five hundred eighty".