939040 has 24 divisors (see below), whose sum is σ = 2218860. Its totient is φ = 375552.

The previous prime is 939019. The next prime is 939061. The reversal of 939040 is 40939.

It is an interprime number because it is at equal distance from previous prime (939019) and next prime (939061).

It can be written as a sum of positive squares in 2 ways, for example, as 853776 + 85264 = 924^2 + 292^2 .

It is a super-2 number, since 2×939040² = 1763592243200, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 938996 and 939014.

It is an unprimeable number.

939040 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775 + ... + 3094.

2⁹³⁹⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

939040 is an abundant number, since it is smaller than the sum of its proper divisors (1279820).

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

939040 is a wasteful number, since it uses less digits than its factorization.

939040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5884 (or 5876 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 939040 is about 969.0407628165. The cubic root of 939040 is about 97.9252519005.

Adding to 939040 its reverse (40939), we get a palindrome (979979).

The spelling of 939040 in words is "nine hundred thirty-nine thousand, forty".