939440 has 20 divisors (see below), whose sum is σ = 2184384. Its totient is φ = 375744.

The previous prime is 939439. The next prime is 939443. The reversal of 939440 is 44939.

It is a happy number.

939440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (939443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5792 + ... + 5951.

2⁹³⁹⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

939440 is an abundant number, since it is smaller than the sum of its proper divisors (1244944).

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

939440 is a wasteful number, since it uses less digits than its factorization.

939440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11756 (or 11750 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 939440 is about 969.2471305090. The cubic root of 939440 is about 97.9391542335.

The spelling of 939440 in words is "nine hundred thirty-nine thousand, four hundred forty".