385643662 has 4 divisors (see below), whose sum is σ = 578465496. Its totient is φ = 192821830.

The previous prime is 385643641. The next prime is 385643681. The reversal of 385643662 is 266346583.

It is a semiprime because it is the product of two primes.

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, 96410914 + ... + 96410917.

It is an arithmetic number, because the mean of its divisors is an integer number (144616374).

Almost surely, 2^385643662 is an apocalyptic number.

385643662 is a deficient number, since it is larger than the sum of its proper divisors (192821834).

385643662 is a wasteful number, since it uses less digits than its factorization.

385643662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192821833.

The product of its digits is 622080, while the sum is 43.

The square root of 385643662 is about 19637.8120471706. The cubic root of 385643662 is about 727.8838207208.

The spelling of 385643662 in words is "three hundred eighty-five million, six hundred forty-three thousand, six hundred sixty-two".