1069069728 has 48 divisors (see below), whose sum is σ = 2808570240. Its totient is φ = 356069376.

The previous prime is 1069069723. The next prime is 1069069733. The reversal of 1069069728 is 8279609601.

It is an interprime number because it is at equal distance from previous prime (1069069723) and next prime (1069069733).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×1069069728³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1069069723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139008 + ... + 146496.

It is an arithmetic number, because the mean of its divisors is an integer number (58511880).

Almost surely, 2^1069069728 is an apocalyptic number.

It is an amenable number.

1069069728 is an abundant number, since it is smaller than the sum of its proper divisors (1739500512).

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

1069069728 is a wasteful number, since it uses less digits than its factorization.

1069069728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8989 (or 8981 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 1069069728 is about 32696.6317531332. The cubic root of 1069069728 is about 1022.5126212816.

The spelling of 1069069728 in words is "one billion, sixty-nine million, sixty-nine thousand, seven hundred twenty-eight".