9555840 has 256 divisors, whose sum is σ = 39168000. Its totient is φ = 2156544.

The previous prime is 9555827. The next prime is 9555859. The reversal of 9555840 is 485559.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 9555795 and 9555804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120921 + ... + 120999.

It is an arithmetic number, because the mean of its divisors is an integer number (153000).

Almost surely, 2^9555840 is an apocalyptic number.

9555840 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 9555840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19584000).

9555840 is an abundant number, since it is smaller than the sum of its proper divisors (29612160).

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

9555840 is a wasteful number, since it uses less digits than its factorization.

9555840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 9555840 is about 3091.2521734727. The cubic root of 9555840 is about 212.2053309087.

The spelling of 9555840 in words is "nine million, five hundred fifty-five thousand, eight hundred forty".