9409940 has 24 divisors (see below), whose sum is σ = 20801760. Its totient is φ = 3565728.

The previous prime is 9409909. The next prime is 9409943. The reversal of 9409940 is 499049.

9409940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 9409940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9409943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12002 + ... + 12761.

It is an arithmetic number, because the mean of its divisors is an integer number (866740).

Almost surely, 2^9409940 is an apocalyptic number.

It is an amenable number.

9409940 is an abundant number, since it is smaller than the sum of its proper divisors (11391820).

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

9409940 is a wasteful number, since it uses less digits than its factorization.

9409940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24791 (or 24789 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 9409940 is about 3067.5625502995. The cubic root of 9409940 is about 211.1197930153.

The spelling of 9409940 in words is "nine million, four hundred nine thousand, nine hundred forty".