386028928 has 64 divisors (see below), whose sum is σ = 857228400. Its totient is φ = 172081152.

The previous prime is 386028901. The next prime is 386028949. The reversal of 386028928 is 829820683.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36676 + ... + 46012.

Almost surely, 2^386028928 is an apocalyptic number.

386028928 is a gapful number since it is divisible by the number (38) 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 386028928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428614200).

386028928 is an abundant number, since it is smaller than the sum of its proper divisors (471199472).

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

386028928 is a wasteful number, since it uses less digits than its factorization.

386028928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9387 (or 9375 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 386028928 is about 19647.6188888119. The cubic root of 386028928 is about 728.1261303819.

The spelling of 386028928 in words is "three hundred eighty-six million, twenty-eight thousand, nine hundred twenty-eight".