343816 has 16 divisors (see below), whose sum is σ = 703440. Its totient is φ = 156240.

The previous prime is 343813. The next prime is 343817. The reversal of 343816 is 618343.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (343813) 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, 1866 + ... + 2041.

It is an arithmetic number, because the mean of its divisors is an integer number (43965).

2³⁴³⁸¹⁶ is an apocalyptic number.

It is an amenable number.

343816 is an abundant number, since it is smaller than the sum of its proper divisors (359624).

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

343816 is a wasteful number, since it uses less digits than its factorization.

343816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924 (or 3920 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 343816 is about 586.3582522656. The cubic root of 343816 is about 70.0554662424.

The spelling of 343816 in words is "three hundred forty-three thousand, eight hundred sixteen".