1306384628 has 12 divisors (see below), whose sum is σ = 2286860100. Its totient is φ = 652996032.

The previous prime is 1306384627. The next prime is 1306384661. The reversal of 1306384628 is 8264836031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 146845924 + 1159538704 = 12118^2 + 34052^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306384627) 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 3 ways as a sum of consecutive naturals, for example, 33551 + ... + 61142.

It is an arithmetic number, because the mean of its divisors is an integer number (190571675).

Almost surely, 2^1306384628 is an apocalyptic number.

It is an amenable number.

1306384628 is a deficient number, since it is larger than the sum of its proper divisors (980475472).

1306384628 is a wasteful number, since it uses less digits than its factorization.

1306384628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98146 (or 98144 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 1306384628 is about 36143.9431717127. The cubic root of 1306384628 is about 1093.1766679730.

The spelling of 1306384628 in words is "one billion, three hundred six million, three hundred eighty-four thousand, six hundred twenty-eight".