940389 has 8 divisors (see below), whose sum is σ = 1327680. Its totient is φ = 590016.

The previous prime is 940369. The next prime is 940399. The reversal of 940389 is 983049.

940389 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 940389 - 2¹¹ = 938341 is a prime.

940389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940319) 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, 9169 + ... + 9270.

It is an arithmetic number, because the mean of its divisors is an integer number (165960).

2⁹⁴⁰³⁸⁹ is an apocalyptic number.

It is an amenable number.

940389 is a deficient number, since it is larger than the sum of its proper divisors (387291).

940389 is a wasteful number, since it uses less digits than its factorization.

940389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18459.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 940389 is about 969.7365621652. The cubic root of 940389 is about 97.9721217384.

The spelling of 940389 in words is "nine hundred forty thousand, three hundred eighty-nine".