389340 has 96 divisors (see below), whose sum is σ = 1397760. Its totient is φ = 88128.

The previous prime is 389303. The next prime is 389357. The reversal of 389340 is 43983.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3729 + ... + 3831.

It is an arithmetic number, because the mean of its divisors is an integer number (14560).

2³⁸⁹³⁴⁰ is an apocalyptic number.

389340 is a gapful number since it is divisible by the number (30) 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 389340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698880).

389340 is an abundant number, since it is smaller than the sum of its proper divisors (1008420).

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

389340 is a wasteful number, since it uses less digits than its factorization.

389340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 389340 is about 623.9711531794. The cubic root of 389340 is about 73.0201983265.

It can be divided in two parts, 389 and 340, that added together give a 6-th power (729 = 3⁶).

The spelling of 389340 in words is "three hundred eighty-nine thousand, three hundred forty".