342349831 has 2 divisors, whose sum is σ = 342349832. Its totient is φ = 342349830.

The previous prime is 342349811. The next prime is 342349907. The reversal of 342349831 is 138943243.

It is a weak prime.

It is an emirp because it is prime and its reverse (138943243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342349831 - 2¹¹ = 342347783 is a prime.

It is a super-2 number, since 2×342349831² = 234406813571457122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342349811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171174915 + 171174916.

It is an arithmetic number, because the mean of its divisors is an integer number (171174916).

Almost surely, 2^342349831 is an apocalyptic number.

342349831 is a deficient number, since it is larger than the sum of its proper divisors (1).

342349831 is an equidigital number, since it uses as much as digits as its factorization.

342349831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The square root of 342349831 is about 18502.6979384089. The cubic root of 342349831 is about 699.5574284085.

The spelling of 342349831 in words is "three hundred forty-two million, three hundred forty-nine thousand, eight hundred thirty-one".