342640373 has 2 divisors, whose sum is σ = 342640374. Its totient is φ = 342640372.

The previous prime is 342640343. The next prime is 342640393. The reversal of 342640373 is 373046243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270339364 + 72301009 = 16442^2 + 8503^2 .

It is an emirp because it is prime and its reverse (373046243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342640373 - 2¹² = 342636277 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342640343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171320186 + 171320187.

It is an arithmetic number, because the mean of its divisors is an integer number (171320187).

Almost surely, 2^342640373 is an apocalyptic number.

It is an amenable number.

342640373 is a deficient number, since it is larger than the sum of its proper divisors (1).

342640373 is an equidigital number, since it uses as much as digits as its factorization.

342640373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 32.

The square root of 342640373 is about 18510.5476148060. The cubic root of 342640373 is about 699.7552702313.

The spelling of 342640373 in words is "three hundred forty-two million, six hundred forty thousand, three hundred seventy-three".