9141440 has 168 divisors, whose sum is σ = 28145232. Its totient is φ = 2795520.

The previous prime is 9141437. The next prime is 9141443. The reversal of 9141440 is 441419.

It is an interprime number because it is at equal distance from previous prime (9141437) and next prime (9141443).

It is not an unprimeable number, because it can be changed into a prime (9141443) 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 23 ways as a sum of consecutive naturals, for example, 172454 + ... + 172506.

Almost surely, 2^9141440 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 9141440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14072616).

9141440 is an abundant number, since it is smaller than the sum of its proper divisors (19003792).

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

9141440 is a wasteful number, since it uses less digits than its factorization.

9141440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 9141440 is about 3023.4814370193. The cubic root of 9141440 is about 209.0923792072.

Adding to 9141440 its reverse (441419), we get a palindrome (9582859).

The spelling of 9141440 in words is "nine million, one hundred forty-one thousand, four hundred forty".