389028 has 24 divisors (see below), whose sum is σ = 961632. Its totient is φ = 121984.

The previous prime is 389027. The next prime is 389029. The reversal of 389028 is 820983.

389028 is nontrivially palindromic in base 7.

389028 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (389027) and next prime (389029).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 388986 and 389004.

It is not an unprimeable number, because it can be changed into a prime (389023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750 + ... + 1157.

It is an arithmetic number, because the mean of its divisors is an integer number (40068).

2³⁸⁹⁰²⁸ is an apocalyptic number.

It is an amenable number.

389028 is an abundant number, since it is smaller than the sum of its proper divisors (572604).

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

389028 is a wasteful number, since it uses less digits than its factorization.

389028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 389028 is about 623.7210915145. The cubic root of 389028 is about 73.0006880526. Note that the first 3 decimals are identical.

The spelling of 389028 in words is "three hundred eighty-nine thousand, twenty-eight".