386668115 has 32 divisors (see below), whose sum is σ = 489646080. Its totient is φ = 292780800.

The previous prime is 386668109. The next prime is 386668133. The reversal of 386668115 is 511866683.

386668115 = 233² + 234² + ... + 1054².

It is not a de Polignac number, because 386668115 - 2⁴ = 386668099 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 31 ways as a sum of consecutive naturals, for example, 2781716 + ... + 2781854.

It is an arithmetic number, because the mean of its divisors is an integer number (15301440).

Almost surely, 2^386668115 is an apocalyptic number.

386668115 is a deficient number, since it is larger than the sum of its proper divisors (102977965).

386668115 is a wasteful number, since it uses less digits than its factorization.

386668115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443.

The product of its digits is 207360, while the sum is 44.

The square root of 386668115 is about 19663.8784322931. The cubic root of 386668115 is about 728.5277860477.

The spelling of 386668115 in words is "three hundred eighty-six million, six hundred sixty-eight thousand, one hundred fifteen".