389910 has 32 divisors (see below), whose sum is σ = 961632. Its totient is φ = 101120.

The previous prime is 389903. The next prime is 389911. The reversal of 389910 is 19983.

It is a happy number.

389910 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072 + ... + 1388.

It is an arithmetic number, because the mean of its divisors is an integer number (30051).

2³⁸⁹⁹¹⁰ is an apocalyptic number.

389910 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 389910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480816).

389910 is an abundant number, since it is smaller than the sum of its proper divisors (571722).

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

389910 is a wasteful number, since it uses less digits than its factorization.

389910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 389910 is about 624.4277380130. The cubic root of 389910 is about 73.0558151978.

The spelling of 389910 in words is "three hundred eighty-nine thousand, nine hundred ten".