1306730672 has 40 divisors (see below), whose sum is σ = 2728835760. Its totient is φ = 602599680.

The previous prime is 1306730629. The next prime is 1306730683. The reversal of 1306730672 is 2760376031.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374954 + ... + 378422.

It is an arithmetic number, because the mean of its divisors is an integer number (68220894).

Almost surely, 2^1306730672 is an apocalyptic number.

It is an amenable number.

1306730672 is an abundant number, since it is smaller than the sum of its proper divisors (1422105088).

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

1306730672 is a wasteful number, since it uses less digits than its factorization.

1306730672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5301 (or 5295 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 1306730672 is about 36148.7298808686. The cubic root of 1306730672 is about 1093.2731821293.

The spelling of 1306730672 in words is "one billion, three hundred six million, seven hundred thirty thousand, six hundred seventy-two".