342040807 has 2 divisors, whose sum is σ = 342040808. Its totient is φ = 342040806.

The previous prime is 342040789. The next prime is 342040813. The reversal of 342040807 is 708040243.

It is a strong prime.

It is an emirp because it is prime and its reverse (708040243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342040807 - 2¹⁵ = 342008039 is a prime.

It is a super-2 number, since 2×342040807² = 233983827306422498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342040817) 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, 171020403 + 171020404.

It is an arithmetic number, because the mean of its divisors is an integer number (171020404).

Almost surely, 2^342040807 is an apocalyptic number.

342040807 is a deficient number, since it is larger than the sum of its proper divisors (1).

342040807 is an equidigital number, since it uses as much as digits as its factorization.

342040807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 342040807 is about 18494.3452709200. The cubic root of 342040807 is about 699.3468785623.

The spelling of 342040807 in words is "three hundred forty-two million, forty thousand, eight hundred seven".