4389940 has 24 divisors (see below), whose sum is σ = 9273600. Its totient is φ = 1745568.

The previous prime is 4389919. The next prime is 4389947. The reversal of 4389940 is 499834.

4389940 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 4389940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4389947) 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 7 ways as a sum of consecutive naturals, for example, 3429 + ... + 4531.

It is an arithmetic number, because the mean of its divisors is an integer number (386400).

Almost surely, 2^4389940 is an apocalyptic number.

It is an amenable number.

4389940 is an abundant number, since it is smaller than the sum of its proper divisors (4883660).

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

4389940 is a wasteful number, since it uses less digits than its factorization.

4389940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 4389940 is about 2095.2183657080. The cubic root of 4389940 is about 163.7392743980.

It can be divided in two parts, 4389 and 940, that added together give a square (5329 = 73²).

The spelling of 4389940 in words is "four million, three hundred eighty-nine thousand, nine hundred forty".