9744720 has 80 divisors (see below), whose sum is σ = 31813440. Its totient is φ = 2460672.

The previous prime is 9744677. The next prime is 9744737. The reversal of 9744720 is 274479.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3492 + ... + 5628.

It is an arithmetic number, because the mean of its divisors is an integer number (397668).

Almost surely, 2^9744720 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 9744720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15906720).

9744720 is an abundant number, since it is smaller than the sum of its proper divisors (22068720).

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

9744720 is a wasteful number, since it uses less digits than its factorization.

9744720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172 (or 2166 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 9744720 is about 3121.6534080516. The cubic root of 9744720 is about 213.5943636381.

The spelling of 9744720 in words is "nine million, seven hundred forty-four thousand, seven hundred twenty".