340123433 has 4 divisors (see below), whose sum is σ = 366286788. Its totient is φ = 313960080.

The previous prime is 340123411. The next prime is 340123447. The reversal of 340123433 is 334321043.

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 69422224 + 270701209 = 8332^2 + 16453^2 .

It is a cyclic number.

It is not a de Polignac number, because 340123433 - 2⁸ = 340123177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340123399 and 340123408.

It is not an unprimeable number, because it can be changed into a prime (340123453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13081658 + ... + 13081683.

It is an arithmetic number, because the mean of its divisors is an integer number (91571697).

Almost surely, 2^340123433 is an apocalyptic number.

It is an amenable number.

340123433 is a deficient number, since it is larger than the sum of its proper divisors (26163355).

340123433 is a wasteful number, since it uses less digits than its factorization.

340123433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26163354.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 340123433 is about 18442.4356580144. The cubic root of 340123433 is about 698.0376557053.

Adding to 340123433 its reverse (334321043), we get a palindrome (674444476).

The spelling of 340123433 in words is "three hundred forty million, one hundred twenty-three thousand, four hundred thirty-three".