340031306 has 16 divisors (see below), whose sum is σ = 514674888. Its totient is φ = 168480000.

The previous prime is 340031273. The next prime is 340031309. The reversal of 340031306 is 603130043.

340031306 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 79370281 + 260661025 = 8909^2 + 16145^2 .

It is not an unprimeable number, because it can be changed into a prime (340031309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111806 + ... + 114806.

Almost surely, 2^340031306 is an apocalyptic number.

340031306 is a deficient number, since it is larger than the sum of its proper divisors (174643582).

340031306 is a wasteful number, since it uses less digits than its factorization.

340031306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 340031306 is about 18439.9377981597. The cubic root of 340031306 is about 697.9746257227.

Adding to 340031306 its reverse (603130043), we get a palindrome (943161349).

The spelling of 340031306 in words is "three hundred forty million, thirty-one thousand, three hundred six".