9255640 has 64 divisors (see below), whose sum is σ = 22032000. Its totient is φ = 3494400.

The previous prime is 9255619. The next prime is 9255647. The reversal of 9255640 is 465529.

9255640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9255647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91590 + ... + 91690.

It is an arithmetic number, because the mean of its divisors is an integer number (344250).

Almost surely, 2^9255640 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 9255640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11016000).

9255640 is an abundant number, since it is smaller than the sum of its proper divisors (12776360).

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

9255640 is a wasteful number, since it uses less digits than its factorization.

9255640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 9255640 is about 3042.3083341437. The cubic root of 9255640 is about 209.9594781980.

The spelling of 9255640 in words is "nine million, two hundred fifty-five thousand, six hundred forty".