9143040 has 72 divisors (see below), whose sum is σ = 29212848. Its totient is φ = 2437120.

The previous prime is 9143023. The next prime is 9143063. The reversal of 9143040 is 403419.

It is a junction number, because it is equal to n+sod(n) for n = 9142998 and 9143016.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 2650 + ... + 5030.

It is an arithmetic number, because the mean of its divisors is an integer number (405734).

Almost surely, 2^9143040 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 9143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14606424).

9143040 is an abundant number, since it is smaller than the sum of its proper divisors (20069808).

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

9143040 is a wasteful number, since it uses less digits than its factorization.

9143040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405 (or 2391 counting only the distinct ones).

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

The square root of 9143040 is about 3023.7460210805. The cubic root of 9143040 is about 209.1045774418.

Adding to 9143040 its reverse (403419), we get a palindrome (9546459).

The spelling of 9143040 in words is "nine million, one hundred forty-three thousand, forty".