9705240 has 48 divisors (see below), whose sum is σ = 31543200. Its totient is φ = 2587968.

The previous prime is 9705239. The next prime is 9705247. The reversal of 9705240 is 425079.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9705247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13120 + ... + 13839.

It is an arithmetic number, because the mean of its divisors is an integer number (657150).

Almost surely, 2^9705240 is an apocalyptic number.

9705240 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9705240 is an abundant number, since it is smaller than the sum of its proper divisors (21837960).

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

9705240 is a wasteful number, since it uses less digits than its factorization.

9705240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26976 (or 26969 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 9705240 is about 3115.3234182024. The cubic root of 9705240 is about 213.3055193773.

The spelling of 9705240 in words is "nine million, seven hundred five thousand, two hundred forty".