386216305 has 8 divisors (see below), whose sum is σ = 463680000. Its totient is φ = 308826096.

The previous prime is 386216291. The next prime is 386216329. The reversal of 386216305 is 503612683.

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

It is a cyclic number.

It is not a de Polignac number, because 386216305 - 2⁷ = 386216177 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6055 + ... + 28444.

It is an arithmetic number, because the mean of its divisors is an integer number (57960000).

Almost surely, 2^386216305 is an apocalyptic number.

It is an amenable number.

386216305 is a deficient number, since it is larger than the sum of its proper divisors (77463695).

386216305 is a wasteful number, since it uses less digits than its factorization.

386216305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36743.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 386216305 is about 19652.3867507232. The cubic root of 386216305 is about 728.2439212271.

Adding to 386216305 its reverse (503612683), we get a palindrome (889828988).

The spelling of 386216305 in words is "three hundred eighty-six million, two hundred sixteen thousand, three hundred five".