9013440 has 112 divisors (see below), whose sum is σ = 29443680. Its totient is φ = 2334720.

The previous prime is 9013439. The next prime is 9013441. The reversal of 9013440 is 443109.

9013440 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9013439) and next prime (9013441).

It is not an unprimeable number, because it can be changed into a prime (9013441) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 39246 + ... + 39474.

It is an arithmetic number, because the mean of its divisors is an integer number (262890).

Almost surely, 2^9013440 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 9013440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14721840).

9013440 is an abundant number, since it is smaller than the sum of its proper divisors (20430240).

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

9013440 is a wasteful number, since it uses less digits than its factorization.

9013440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 9013440 is about 3002.2391643572. The cubic root of 9013440 is about 208.1118727573. Note that the first 3 decimals are identical.

Adding to 9013440 its reverse (443109), we get a palindrome (9456549).

It can be divided in two parts, 9013 and 440, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 9013440 in words is "nine million, thirteen thousand, four hundred forty".