340434305 has 16 divisors (see below), whose sum is σ = 435475200. Its totient is φ = 254741760.

The previous prime is 340434271. The next prime is 340434313. The reversal of 340434305 is 503434043.

It is a happy number.

It is not a de Polignac number, because 340434305 - 2²⁰ = 339385729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15176 + ... + 30185.

It is an arithmetic number, because the mean of its divisors is an integer number (27217200).

Almost surely, 2^340434305 is an apocalyptic number.

It is an amenable number.

340434305 is a deficient number, since it is larger than the sum of its proper divisors (95040895).

340434305 is a wasteful number, since it uses less digits than its factorization.

340434305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45464.

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

The square root of 340434305 is about 18450.8619039870. The cubic root of 340434305 is about 698.2502591918.

Adding to 340434305 its reverse (503434043), we get a palindrome (843868348).

The spelling of 340434305 in words is "three hundred forty million, four hundred thirty-four thousand, three hundred five".