9744140 has 72 divisors (see below), whose sum is σ = 24342192. Its totient is φ = 3265920.

The previous prime is 9744139. The next prime is 9744143. The reversal of 9744140 is 414479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9744143) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 59699 + ... + 59861.

It is an arithmetic number, because the mean of its divisors is an integer number (338086).

Almost surely, 2^9744140 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 9744140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12171096).

9744140 is an abundant number, since it is smaller than the sum of its proper divisors (14598052).

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

9744140 is a wasteful number, since it uses less digits than its factorization.

9744140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 9744140 is about 3121.5605071823. The cubic root of 9744140 is about 213.5901258838.

The spelling of 9744140 in words is "nine million, seven hundred forty-four thousand, one hundred forty".