343812 has 24 divisors (see below), whose sum is σ = 917056. Its totient is φ = 98208.

The previous prime is 343801. The next prime is 343813. The reversal of 343812 is 218343.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 343812.

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 7 ways as a sum of consecutive naturals, for example, 1963 + ... + 2130.

2³⁴³⁸¹² is an apocalyptic number.

It is an amenable number.

343812 is an abundant number, since it is smaller than the sum of its proper divisors (573244).

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

343812 is a wasteful number, since it uses less digits than its factorization.

343812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107 (or 4105 counting only the distinct ones).

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

The square root of 343812 is about 586.3548413717. The cubic root of 343812 is about 70.0551945632.

The spelling of 343812 in words is "three hundred forty-three thousand, eight hundred twelve".