385191994 has 16 divisors (see below), whose sum is σ = 657720000. Its totient is φ = 167474560.

The previous prime is 385191991. The next prime is 385192009. The reversal of 385191994 is 499191583.

It is not an unprimeable number, because it can be changed into a prime (385191991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380119 + ... + 381130.

It is an arithmetic number, because the mean of its divisors is an integer number (41107500).

Almost surely, 2^385191994 is an apocalyptic number.

385191994 is a deficient number, since it is larger than the sum of its proper divisors (272528006).

385191994 is a wasteful number, since it uses less digits than its factorization.

385191994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761285.

The product of its digits is 349920, while the sum is 49.

The square root of 385191994 is about 19626.3087206943. The cubic root of 385191994 is about 727.5995425173.

The spelling of 385191994 in words is "three hundred eighty-five million, one hundred ninety-one thousand, nine hundred ninety-four".