1306939180 has 24 divisors (see below), whose sum is σ = 2747451168. Its totient is φ = 522227328.

The previous prime is 1306939177. The next prime is 1306939181. The reversal of 1306939180 is 819396031.

It is not an unprimeable number, because it can be changed into a prime (1306939181) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14449 + ... + 53128.

It is an arithmetic number, because the mean of its divisors is an integer number (114477132).

Almost surely, 2^1306939180 is an apocalyptic number.

1306939180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306939180 is an abundant number, since it is smaller than the sum of its proper divisors (1440511988).

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

1306939180 is a wasteful number, since it uses less digits than its factorization.

1306939180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68553 (or 68551 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 1306939180 is about 36151.6137952374. The cubic root of 1306939180 is about 1093.3313282814.

The spelling of 1306939180 in words is "one billion, three hundred six million, nine hundred thirty-nine thousand, one hundred eighty".