340043351 has 2 divisors, whose sum is σ = 340043352. Its totient is φ = 340043350.

The previous prime is 340043321. The next prime is 340043359. The reversal of 340043351 is 153340043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340043351 - 2⁶ = 340043287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340043359) 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 as a sum of consecutive naturals, namely, 170021675 + 170021676.

It is an arithmetic number, because the mean of its divisors is an integer number (170021676).

Almost surely, 2^340043351 is an apocalyptic number.

340043351 is a deficient number, since it is larger than the sum of its proper divisors (1).

340043351 is an equidigital number, since it uses as much as digits as its factorization.

340043351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 340043351 is about 18440.2643961522. The cubic root of 340043351 is about 697.9828671257.

Adding to 340043351 its reverse (153340043), we get a palindrome (493383394).

The spelling of 340043351 in words is "three hundred forty million, forty-three thousand, three hundred fifty-one".