340304345 has 16 divisors (see below), whose sum is σ = 430429440. Its totient is φ = 257572224.

The previous prime is 340304339. The next prime is 340304347. The reversal of 340304345 is 543403043.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 340304345 - 2⁸ = 340304089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340304347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87104 + ... + 90926.

It is an arithmetic number, because the mean of its divisors is an integer number (26901840).

Almost surely, 2^340304345 is an apocalyptic number.

It is an amenable number.

340304345 is a deficient number, since it is larger than the sum of its proper divisors (90125095).

340304345 is a wasteful number, since it uses less digits than its factorization.

340304345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4784.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 340304345 is about 18447.3397811175. The cubic root of 340304345 is about 698.1613960817.

Adding to 340304345 its reverse (543403043), we get a palindrome (883707388).

The spelling of 340304345 in words is "three hundred forty million, three hundred four thousand, three hundred forty-five".