386866672 has 20 divisors (see below), whose sum is σ = 769813576. Its totient is φ = 188205120.

The previous prime is 386866631. The next prime is 386866679. The reversal of 386866672 is 276668683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386866679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326154 + ... + 327337.

Almost surely, 2^386866672 is an apocalyptic number.

It is an amenable number.

386866672 is a deficient number, since it is larger than the sum of its proper divisors (382946904).

386866672 is a wasteful number, since it uses less digits than its factorization.

386866672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653536 (or 653530 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 52.

The square root of 386866672 is about 19668.9265594236. The cubic root of 386866672 is about 728.6524662171.

The spelling of 386866672 in words is "three hundred eighty-six million, eight hundred sixty-six thousand, six hundred seventy-two".