9491040 has 192 divisors, whose sum is σ = 35985600. Its totient is φ = 2336256.

The previous prime is 9491029. The next prime is 9491047. The reversal of 9491040 is 401949.

9491040 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 9490995 and 9491013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9491047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 730074 + ... + 730086.

It is an arithmetic number, because the mean of its divisors is an integer number (187425).

Almost surely, 2^9491040 is an apocalyptic number.

9491040 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9491040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17992800).

9491040 is an abundant number, since it is smaller than the sum of its proper divisors (26494560).

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

9491040 is a wasteful number, since it uses less digits than its factorization.

9491040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 9491040 is about 3080.7531546685. The cubic root of 9491040 is about 211.7245740944.

Adding to 9491040 its reverse (401949), we get a palindrome (9892989).

The spelling of 9491040 in words is "nine million, four hundred ninety-one thousand, forty".