386400860 has 48 divisors (see below), whose sum is σ = 820713600. Its totient is φ = 152807424.

The previous prime is 386400841. The next prime is 386400877. The reversal of 386400860 is 68004683.

It is a self number, because there is not a number n which added to its sum of digits gives 386400860.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1094444 + ... + 1094796.

It is an arithmetic number, because the mean of its divisors is an integer number (17098200).

Almost surely, 2^386400860 is an apocalyptic number.

It is an amenable number.

386400860 is an abundant number, since it is smaller than the sum of its proper divisors (434312740).

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

386400860 is a wasteful number, since it uses less digits than its factorization.

386400860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 386400860 is about 19657.0816755692. The cubic root of 386400860 is about 728.3599008416.

The spelling of 386400860 in words is "three hundred eighty-six million, four hundred thousand, eight hundred sixty".