342500399 has 2 divisors, whose sum is σ = 342500400. Its totient is φ = 342500398.

The previous prime is 342500387. The next prime is 342500437. The reversal of 342500399 is 993005243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342500399 - 2¹⁶ = 342434863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342100399) 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, 171250199 + 171250200.

It is an arithmetic number, because the mean of its divisors is an integer number (171250200).

Almost surely, 2^342500399 is an apocalyptic number.

342500399 is a deficient number, since it is larger than the sum of its proper divisors (1).

342500399 is an equidigital number, since it uses as much as digits as its factorization.

342500399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 342500399 is about 18506.7663031660. The cubic root of 342500399 is about 699.6599702291.

The spelling of 342500399 in words is "three hundred forty-two million, five hundred thousand, three hundred ninety-nine".