9439040 has 56 divisors (see below), whose sum is σ = 24216360. Its totient is φ = 3483648.

The previous prime is 9439019. The next prime is 9439043. The reversal of 9439040 is 409349.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 246016 + 9193024 = 496^2 + 3032^2 .

It is a super-2 number, since 2×9439040² = 178190952243200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9438994 and 9439012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9439043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3026 + ... + 5294.

It is an arithmetic number, because the mean of its divisors is an integer number (432435).

Almost surely, 2^9439040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9439040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12108180).

9439040 is an abundant number, since it is smaller than the sum of its proper divisors (14777320).

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

9439040 is a wasteful number, since it uses less digits than its factorization.

9439040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299 (or 2289 counting only the distinct ones).

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

The square root of 9439040 is about 3072.3020684822. The cubic root of 9439040 is about 211.3371965932.

The spelling of 9439040 in words is "nine million, four hundred thirty-nine thousand, forty".