342494813 has 2 divisors, whose sum is σ = 342494814. Its totient is φ = 342494812.

The previous prime is 342494759. The next prime is 342494819. The reversal of 342494813 is 318494243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291828889 + 50665924 = 17083^2 + 7118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342494813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342494819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171247406 + 171247407.

It is an arithmetic number, because the mean of its divisors is an integer number (171247407).

Almost surely, 2^342494813 is an apocalyptic number.

It is an amenable number.

342494813 is a deficient number, since it is larger than the sum of its proper divisors (1).

342494813 is an equidigital number, since it uses as much as digits as its factorization.

342494813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 38.

The square root of 342494813 is about 18506.6153847753. The cubic root of 342494813 is about 699.6561665140.

The spelling of 342494813 in words is "three hundred forty-two million, four hundred ninety-four thousand, eight hundred thirteen".