343666340 has 24 divisors (see below), whose sum is σ = 723481080. Its totient is φ = 137127168.

The previous prime is 343666333. The next prime is 343666399. The reversal of 343666340 is 43666343.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 141514816 + 202151524 = 11896^2 + 14218^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 343666340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12827 + ... + 29186.

It is an arithmetic number, because the mean of its divisors is an integer number (30145045).

Almost surely, 2^343666340 is an apocalyptic number.

It is an amenable number.

343666340 is an abundant number, since it is smaller than the sum of its proper divisors (379814740).

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

343666340 is a wasteful number, since it uses less digits than its factorization.

343666340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42431 (or 42429 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 35.

The square root of 343666340 is about 18538.2399380308. The cubic root of 343666340 is about 700.4529992990.

The spelling of 343666340 in words is "three hundred forty-three million, six hundred sixty-six thousand, three hundred forty".