385309142 has 8 divisors (see below), whose sum is σ = 583686432. Its totient is φ = 190747000.

The previous prime is 385309081. The next prime is 385309163. The reversal of 385309142 is 241903583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 953534 + ... + 953937.

It is an arithmetic number, because the mean of its divisors is an integer number (72960804).

Almost surely, 2^385309142 is an apocalyptic number.

385309142 is a deficient number, since it is larger than the sum of its proper divisors (198377290).

385309142 is a wasteful number, since it uses less digits than its factorization.

385309142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907574.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 385309142 is about 19629.2929572107. The cubic root of 385309142 is about 727.6732963794.

The spelling of 385309142 in words is "three hundred eighty-five million, three hundred nine thousand, one hundred forty-two".