385042342 has 4 divisors (see below), whose sum is σ = 577563516. Its totient is φ = 192521170.

The previous prime is 385042321. The next prime is 385042393. The reversal of 385042342 is 243240583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243240583 = 233 ⋅1043951.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96260584 + ... + 96260587.

It is an arithmetic number, because the mean of its divisors is an integer number (144390879).

Almost surely, 2^385042342 is an apocalyptic number.

385042342 is a deficient number, since it is larger than the sum of its proper divisors (192521174).

385042342 is a wasteful number, since it uses less digits than its factorization.

385042342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192521173.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 385042342 is about 19622.4958147530. The cubic root of 385042342 is about 727.5053030793.

The spelling of 385042342 in words is "three hundred eighty-five million, forty-two thousand, three hundred forty-two".