389020 has 24 divisors (see below), whose sum is σ = 834624. Its totient is φ = 152256.

The previous prime is 389003. The next prime is 389023. The reversal of 389020 is 20983.

It is a junction number, because it is equal to n+sod(n) for n = 388982 and 389000.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877 + ... + 1243.

It is an arithmetic number, because the mean of its divisors is an integer number (34776).

2³⁸⁹⁰²⁰ is an apocalyptic number.

It is an amenable number.

389020 is an abundant number, since it is smaller than the sum of its proper divisors (445604).

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

389020 is a wasteful number, since it uses less digits than its factorization.

389020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 389020 is about 623.7146783586. The cubic root of 389020 is about 73.0001876520. Note that the first 3 decimals are identical.

The spelling of 389020 in words is "three hundred eighty-nine thousand, twenty".