386434864 has 20 divisors (see below), whose sum is σ = 749108304. Its totient is φ = 193116608.

The previous prime is 386434859. The next prime is 386434877. The reversal of 386434864 is 468434683.

It is a super-2 number, since 2×386434864² = 298663808229396992, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32589 + ... + 42835.

Almost surely, 2^386434864 is an apocalyptic number.

It is an amenable number.

386434864 is a deficient number, since it is larger than the sum of its proper divisors (362673440).

386434864 is a wasteful number, since it uses less digits than its factorization.

386434864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12612 (or 12606 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 46.

The square root of 386434864 is about 19657.9465865588. The cubic root of 386434864 is about 728.3812658937.

The spelling of 386434864 in words is "three hundred eighty-six million, four hundred thirty-four thousand, eight hundred sixty-four".