340343345 has 4 divisors (see below), whose sum is σ = 408412020. Its totient is φ = 272274672.

The previous prime is 340343299. The next prime is 340343401. The reversal of 340343345 is 543343043.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 120384784 + 219958561 = 10972^2 + 14831^2 .

It is a cyclic number.

It is not a de Polignac number, because 340343345 - 2¹² = 340339249 is a prime.

It is a Curzon number.

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, 34034330 + ... + 34034339.

It is an arithmetic number, because the mean of its divisors is an integer number (102103005).

Almost surely, 2^340343345 is an apocalyptic number.

It is an amenable number.

340343345 is a deficient number, since it is larger than the sum of its proper divisors (68068675).

340343345 is an equidigital number, since it uses as much as digits as its factorization.

340343345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68068674.

The product of its (nonzero) digits is 25920, while the sum is 29.

The square root of 340343345 is about 18448.3968138156. The cubic root of 340343345 is about 698.1880655956.

Adding to 340343345 its reverse (543343043), we get a palindrome (883686388).

The spelling of 340343345 in words is "three hundred forty million, three hundred forty-three thousand, three hundred forty-five".