386658081 has 24 divisors (see below), whose sum is σ = 592678944. Its totient is φ = 242067840.

The previous prime is 386658067. The next prime is 386658091. The reversal of 386658081 is 180856683.

386658081 is a `hidden beast` number, since 3 + 8 + 66 + 580 + 8 + 1 = 666.

It is not a de Polignac number, because 386658081 - 2¹⁰ = 386657057 is a prime.

It is a super-2 number, since 2×386658081² = 299008943205205122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (386658001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72550 + ... + 77696.

It is an arithmetic number, because the mean of its divisors is an integer number (24694956).

Almost surely, 2^386658081 is an apocalyptic number.

It is an amenable number.

386658081 is a deficient number, since it is larger than the sum of its proper divisors (206020863).

386658081 is a wasteful number, since it uses less digits than its factorization.

386658081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5661 (or 5658 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 386658081 is about 19663.6232927708. The cubic root of 386658081 is about 728.5214842514.

The spelling of 386658081 in words is "three hundred eighty-six million, six hundred fifty-eight thousand, eighty-one".