386909682 has 16 divisors (see below), whose sum is σ = 774349632. Its totient is φ = 128881520.

The previous prime is 386909659. The next prime is 386909693. The reversal of 386909682 is 286909683.

It is a super-2 number, since 2×386909682² = 299398204050682248, which contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 12273 + ... + 30404.

It is an arithmetic number, because the mean of its divisors is an integer number (48396852).

Almost surely, 2^386909682 is an apocalyptic number.

386909682 is an abundant number, since it is smaller than the sum of its proper divisors (387439950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

386909682 is a wasteful number, since it uses less digits than its factorization.

386909682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44193.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 386909682 is about 19670.0198779767. The cubic root of 386909682 is about 728.6794679239.

Subtracting from 386909682 its reverse (286909683), we obtain a palindrome (99999999).

The spelling of 386909682 in words is "three hundred eighty-six million, nine hundred nine thousand, six hundred eighty-two".