9117240 has 64 divisors (see below), whose sum is σ = 29842560. Its totient is φ = 2209920.

The previous prime is 9117221. The next prime is 9117257. The reversal of 9117240 is 427119.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 9117240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2134 + ... + 4773.

It is an arithmetic number, because the mean of its divisors is an integer number (466290).

Almost surely, 2^9117240 is an apocalyptic number.

It is an amenable number.

9117240 is an abundant number, since it is smaller than the sum of its proper divisors (20725320).

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

9117240 is a wasteful number, since it uses less digits than its factorization.

9117240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932 (or 6928 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 9117240 is about 3019.4767758670. The cubic root of 9117240 is about 208.9077070886.

The spelling of 9117240 in words is "nine million, one hundred seventeen thousand, two hundred forty".