1068526728 has 80 divisors (see below), whose sum is σ = 3029075280. Its totient is φ = 351866592.

The previous prime is 1068526727. The next prime is 1068526729. The reversal of 1068526728 is 8276258601.

1068526728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1068526727) and next prime (1068526729).

It is a super-2 number, since 2×1068526728² = 2283498736900771968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068526727) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43851 + ... + 63717.

It is an arithmetic number, because the mean of its divisors is an integer number (37863441).

Almost surely, 2^1068526728 is an apocalyptic number.

1068526728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1068526728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1514537640).

1068526728 is an abundant number, since it is smaller than the sum of its proper divisors (1960548552).

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

1068526728 is a wasteful number, since it uses less digits than its factorization.

1068526728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19968 (or 19955 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 1068526728 is about 32688.3270908745. The cubic root of 1068526728 is about 1022.3394743645.

The spelling of 1068526728 in words is "one billion, sixty-eight million, five hundred twenty-six thousand, seven hundred twenty-eight".