1328796726 has 8 divisors (see below), whose sum is σ = 2657593464. Its totient is φ = 442932240.

The previous prime is 1328796713. The next prime is 1328796743. The reversal of 1328796726 is 6276978231.

It is a sphenic number, since it is the product of 3 distinct primes.

1328796726 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 110733055 + ... + 110733066.

It is an arithmetic number, because the mean of its divisors is an integer number (332199183).

Almost surely, 2^1328796726 is an apocalyptic number.

1328796726 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1328796726 is a wasteful number, since it uses less digits than its factorization.

1328796726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221466126.

The product of its digits is 1524096, while the sum is 51.

The square root of 1328796726 is about 36452.6641824709. The cubic root of 1328796726 is about 1099.3927022449.

The spelling of 1328796726 in words is "one billion, three hundred twenty-eight million, seven hundred ninety-six thousand, seven hundred twenty-six".