343880 has 16 divisors (see below), whose sum is σ = 773820. Its totient is φ = 137536.

The previous prime is 343831. The next prime is 343891. The reversal of 343880 is 88343.

343880 = 60² + 61² + ... + 107².

It can be written as a sum of positive squares in 2 ways, for example, as 343396 + 484 = 586^2 + 22^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4259 + ... + 4338.

2³⁴³⁸⁸⁰ is an apocalyptic number.

It is an amenable number.

343880 is an abundant number, since it is smaller than the sum of its proper divisors (429940).

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

343880 is a wasteful number, since it uses less digits than its factorization.

343880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8608 (or 8604 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 343880 is about 586.4128238707. The cubic root of 343880 is about 70.0598128228.

The spelling of 343880 in words is "three hundred forty-three thousand, eight hundred eighty".