9490728 has 64 divisors (see below), whose sum is σ = 26913600. Its totient is φ = 2764800.

The previous prime is 9490717. The next prime is 9490813. The reversal of 9490728 is 8270949.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 5128 + ... + 6728.

It is an arithmetic number, because the mean of its divisors is an integer number (420525).

Almost surely, 2^9490728 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 9490728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13456800).

9490728 is an abundant number, since it is smaller than the sum of its proper divisors (17422872).

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

9490728 is a wasteful number, since it uses less digits than its factorization.

9490728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 9490728 is about 3080.7025172840. The cubic root of 9490728 is about 211.7222540539.

The spelling of 9490728 in words is "nine million, four hundred ninety thousand, seven hundred twenty-eight".