1306766670 has 32 divisors (see below), whose sum is σ = 3421353600. Its totient is φ = 316791840.

The previous prime is 1306766663. The next prime is 1306766687. The reversal of 1306766670 is 766676031.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1979620 + ... + 1980279.

It is an arithmetic number, because the mean of its divisors is an integer number (106917300).

Almost surely, 2^1306766670 is an apocalyptic number.

1306766670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1306766670 is an abundant number, since it is smaller than the sum of its proper divisors (2114586930).

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

1306766670 is a wasteful number, since it uses less digits than its factorization.

1306766670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959920.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 1306766670 is about 36149.2277925822. The cubic root of 1306766670 is about 1093.2832212515.

The spelling of 1306766670 in words is "one billion, three hundred six million, seven hundred sixty-six thousand, six hundred seventy".