342100399 has 2 divisors, whose sum is σ = 342100400. Its totient is φ = 342100398.

The previous prime is 342100397. The next prime is 342100457. The reversal of 342100399 is 993001243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342100399 - 2¹ = 342100397 is a prime.

Together with 342100397, it forms a pair of twin primes.

It is equal to p_18401737 and since 342100399 and 18401737 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 342100399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342100393) 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, 171050199 + 171050200.

It is an arithmetic number, because the mean of its divisors is an integer number (171050200).

Almost surely, 2^342100399 is an apocalyptic number.

342100399 is a deficient number, since it is larger than the sum of its proper divisors (1).

342100399 is an equidigital number, since it uses as much as digits as its factorization.

342100399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 342100399 is about 18495.9562877944. The cubic root of 342100399 is about 699.3874907332.

The spelling of 342100399 in words is "three hundred forty-two million, one hundred thousand, three hundred ninety-nine".