340323353 has 4 divisors (see below), whose sum is σ = 340361268. Its totient is φ = 340285440.

The previous prime is 340323337. The next prime is 340323359. The reversal of 340323353 is 353323043.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 84419344 + 255904009 = 9188^2 + 15997^2 .

It is a cyclic number.

It is not a de Polignac number, because 340323353 - 2⁴ = 340323337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340323359) 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, 2933 + ... + 26253.

It is an arithmetic number, because the mean of its divisors is an integer number (85090317).

Almost surely, 2^340323353 is an apocalyptic number.

It is an amenable number.

340323353 is a deficient number, since it is larger than the sum of its proper divisors (37915).

340323353 is a wasteful number, since it uses less digits than its factorization.

340323353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37914.

The product of its (nonzero) digits is 9720, while the sum is 26.

The square root of 340323353 is about 18447.8549701585. The cubic root of 340323353 is about 698.1743946470.

Adding to 340323353 its reverse (353323043), we get a palindrome (693646396).

The spelling of 340323353 in words is "three hundred forty million, three hundred twenty-three thousand, three hundred fifty-three".