340433323 has 2 divisors, whose sum is σ = 340433324. Its totient is φ = 340433322.

The previous prime is 340433321. The next prime is 340433329. The reversal of 340433323 is 323334043.

It is a weak prime.

It is an emirp because it is prime and its reverse (323334043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340433323 - 2¹ = 340433321 is a prime.

Together with 340433321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (340433321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170216661 + 170216662.

It is an arithmetic number, because the mean of its divisors is an integer number (170216662).

Almost surely, 2^340433323 is an apocalyptic number.

340433323 is a deficient number, since it is larger than the sum of its proper divisors (1).

340433323 is an equidigital number, since it uses as much as digits as its factorization.

340433323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 25.

The square root of 340433323 is about 18450.8352927449. The cubic root of 340433323 is about 698.2495878117.

Adding to 340433323 its reverse (323334043), we get a palindrome (663767366).

The spelling of 340433323 in words is "three hundred forty million, four hundred thirty-three thousand, three hundred twenty-three".