389420 has 12 divisors (see below), whose sum is σ = 817824. Its totient is φ = 155760.

The previous prime is 389401. The next prime is 389437. The reversal of 389420 is 24983.

It is a self number, because there is not a number n which added to its sum of digits gives 389420.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389420.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9716 + ... + 9755.

It is an arithmetic number, because the mean of its divisors is an integer number (68152).

2³⁸⁹⁴²⁰ is an apocalyptic number.

It is an amenable number.

389420 is an abundant number, since it is smaller than the sum of its proper divisors (428404).

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

389420 is a wasteful number, since it uses less digits than its factorization.

389420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19480 (or 19478 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 389420 is about 624.0352554143. The cubic root of 389420 is about 73.0251992818.

The spelling of 389420 in words is "three hundred eighty-nine thousand, four hundred twenty".