386859720 has 128 divisors (see below), whose sum is σ = 1273708800. Its totient is φ = 93410304.

The previous prime is 386859709. The next prime is 386859721. The reversal of 386859720 is 27958683.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 386859720.

It is not an unprimeable number, because it can be changed into a prime (386859721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80341 + ... + 85019.

It is an arithmetic number, because the mean of its divisors is an integer number (9950850).

Almost surely, 2^386859720 is an apocalyptic number.

386859720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386859720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636854400).

386859720 is an abundant number, since it is smaller than the sum of its proper divisors (886849080).

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

386859720 is a wasteful number, since it uses less digits than its factorization.

386859720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4759 (or 4755 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 386859720 is about 19668.7498331745. The cubic root of 386859720 is about 728.6481015590.

The spelling of 386859720 in words is "three hundred eighty-six million, eight hundred fifty-nine thousand, seven hundred twenty".