385742099 has 2 divisors, whose sum is σ = 385742100. Its totient is φ = 385742098.

The previous prime is 385742081. The next prime is 385742141. The reversal of 385742099 is 990247583.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385742099 - 2⁸ = 385741843 is a prime.

It is not a weakly prime, because it can be changed into another prime (385742029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192871049 + 192871050.

It is an arithmetic number, because the mean of its divisors is an integer number (192871050).

Almost surely, 2^385742099 is an apocalyptic number.

385742099 is a deficient number, since it is larger than the sum of its proper divisors (1).

385742099 is an equidigital number, since it uses as much as digits as its factorization.

385742099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 385742099 is about 19640.3182000700. The cubic root of 385742099 is about 727.9457471495.

The spelling of 385742099 in words is "three hundred eighty-five million, seven hundred forty-two thousand, ninety-nine".