1328766670 has 32 divisors (see below), whose sum is σ = 2981961216. Its totient is φ = 414160800.

The previous prime is 1328766623. The next prime is 1328766679. The reversal of 1328766670 is 766678231.

It is a self number, because there is not a number n which added to its sum of digits gives 1328766670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328766679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 862066 + ... + 863605.

It is an arithmetic number, because the mean of its divisors is an integer number (93186288).

Almost surely, 2^1328766670 is an apocalyptic number.

1328766670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1328766670 is an abundant number, since it is smaller than the sum of its proper divisors (1653194546).

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

1328766670 is a wasteful number, since it uses less digits than its factorization.

1328766670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725696.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 1328766670 is about 36452.2519194631. The cubic root of 1328766670 is about 1099.3844131426.

The spelling of 1328766670 in words is "one billion, three hundred twenty-eight million, seven hundred sixty-six thousand, six hundred seventy".