9413840 has 20 divisors (see below), whose sum is σ = 21887364. Its totient is φ = 3765504.

The previous prime is 9413839. The next prime is 9413849. The reversal of 9413840 is 483149.

It can be written as a sum of positive squares in 2 ways, for example, as 1073296 + 8340544 = 1036^2 + 2888^2 .

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

It is a super-3 number, since 3×9413840³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9413849) 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 3 ways as a sum of consecutive naturals, for example, 58757 + ... + 58916.

Almost surely, 2^9413840 is an apocalyptic number.

It is an amenable number.

9413840 is an abundant number, since it is smaller than the sum of its proper divisors (12473524).

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

9413840 is a wasteful number, since it uses less digits than its factorization.

9413840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117686 (or 117680 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 9413840 is about 3068.1981683066. The cubic root of 9413840 is about 211.1489555629.

Adding to 9413840 its reverse (483149), we get a palindrome (9896989).

The spelling of 9413840 in words is "nine million, four hundred thirteen thousand, eight hundred forty".