342505439 has 2 divisors, whose sum is σ = 342505440. Its totient is φ = 342505438.

The previous prime is 342505379. The next prime is 342505463. The reversal of 342505439 is 934505243.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 342505439 - 2⁸ = 342505183 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 342505399 and 342505408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342504439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171252719 + 171252720.

It is an arithmetic number, because the mean of its divisors is an integer number (171252720).

Almost surely, 2^342505439 is an apocalyptic number.

342505439 is a deficient number, since it is larger than the sum of its proper divisors (1).

342505439 is an equidigital number, since it uses as much as digits as its factorization.

342505439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 342505439 is about 18506.9024690789. The cubic root of 342505439 is about 699.6634021170.

The spelling of 342505439 in words is "three hundred forty-two million, five hundred five thousand, four hundred thirty-nine".