9409343440 has 80 divisors (see below), whose sum is σ = 25283024640. Its totient is φ = 3189795840.

The previous prime is 9409343431. The next prime is 9409343453. The reversal of 9409343440 is 443439049.

9409343440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 9409343393 and 9409343402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44556 + ... + 144235.

It is an arithmetic number, because the mean of its divisors is an integer number (316037808).

Almost surely, 2^9409343440 is an apocalyptic number.

It is an amenable number.

9409343440 is an abundant number, since it is smaller than the sum of its proper divisors (15873681200).

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

9409343440 is a wasteful number, since it uses less digits than its factorization.

9409343440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188900 (or 188894 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 9409343440 is about 97001.7702931240. The cubic root of 9409343440 is about 2111.1533148185.

The spelling of 9409343440 in words is "nine billion, four hundred nine million, three hundred forty-three thousand, four hundred forty".