9305040 has 80 divisors (see below), whose sum is σ = 29158848. Its totient is φ = 2454528.

The previous prime is 9304993. The next prime is 9305057. The reversal of 9305040 is 405039.

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

It is a junction number, because it is equal to n+sod(n) for n = 9304998 and 9305016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32739 + ... + 33021.

Almost surely, 2^9305040 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 9305040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14579424).

9305040 is an abundant number, since it is smaller than the sum of its proper divisors (19853808).

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

9305040 is a wasteful number, since it uses less digits than its factorization.

9305040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 9305040 is about 3050.4163650230. The cubic root of 9305040 is about 210.3323535464.

The spelling of 9305040 in words is "nine million, three hundred five thousand, forty".