342528289 has 2 divisors, whose sum is σ = 342528290. Its totient is φ = 342528288.

The previous prime is 342528281. The next prime is 342528317. The reversal of 342528289 is 982825243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267878689 + 74649600 = 16367^2 + 8640^2 .

It is a cyclic number.

It is not a de Polignac number, because 342528289 - 2³ = 342528281 is a prime.

It is not a weakly prime, because it can be changed into another prime (342528281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171264144 + 171264145.

It is an arithmetic number, because the mean of its divisors is an integer number (171264145).

Almost surely, 2^342528289 is an apocalyptic number.

It is an amenable number.

342528289 is a deficient number, since it is larger than the sum of its proper divisors (1).

342528289 is an equidigital number, since it uses as much as digits as its factorization.

342528289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 43.

The square root of 342528289 is about 18507.5197960180. The cubic root of 342528289 is about 699.6789609485.

The spelling of 342528289 in words is "three hundred forty-two million, five hundred twenty-eight thousand, two hundred eighty-nine".