1009749328 has 20 divisors (see below), whose sum is σ = 2235873760. Its totient is φ = 432749664.

The previous prime is 1009749311. The next prime is 1009749331. The reversal of 1009749328 is 8239479001.

1009749328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4507698 + ... + 4507921.

It is an arithmetic number, because the mean of its divisors is an integer number (111793688).

Almost surely, 2^1009749328 is an apocalyptic number.

It is an amenable number.

1009749328 is an abundant number, since it is smaller than the sum of its proper divisors (1226124432).

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

1009749328 is an equidigital number, since it uses as much as digits as its factorization.

1009749328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9015634 (or 9015628 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 1009749328 is about 31776.5531170390. The cubic root of 1009749328 is about 1003.2392717885.

The spelling of 1009749328 in words is "one billion, nine million, seven hundred forty-nine thousand, three hundred twenty-eight".