1306323656 has 64 divisors (see below), whose sum is σ = 2871650880. Its totient is φ = 550471680.

The previous prime is 1306323653. The next prime is 1306323671. The reversal of 1306323656 is 6563236031.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1306323653) 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 15 ways as a sum of consecutive naturals, for example, 93716 + ... + 106748.

It is an arithmetic number, because the mean of its divisors is an integer number (44869545).

Almost surely, 2^1306323656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1306323656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1435825440).

1306323656 is an abundant number, since it is smaller than the sum of its proper divisors (1565327224).

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

1306323656 is a wasteful number, since it uses less digits than its factorization.

1306323656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13134 (or 13130 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 35.

The square root of 1306323656 is about 36143.0997010494. The cubic root of 1306323656 is about 1093.1596606784.

Adding to 1306323656 its reverse (6563236031), we get a palindrome (7869559687).

The spelling of 1306323656 in words is "one billion, three hundred six million, three hundred twenty-three thousand, six hundred fifty-six".