1306170768 has 80 divisors (see below), whose sum is σ = 3884195840. Its totient is φ = 370493568.

The previous prime is 1306170737. The next prime is 1306170787. The reversal of 1306170768 is 8670716031.

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, 32721 + ... + 60687.

It is an arithmetic number, because the mean of its divisors is an integer number (48552448).

Almost surely, 2^1306170768 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 1306170768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1942097920).

1306170768 is an abundant number, since it is smaller than the sum of its proper divisors (2578025072).

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

1306170768 is a wasteful number, since it uses less digits than its factorization.

1306170768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28124 (or 28118 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 1306170768 is about 36140.9846019723. The cubic root of 1306170768 is about 1093.1170123617.

Adding to 1306170768 its reverse (8670716031), we get a palindrome (9976886799).

The spelling of 1306170768 in words is "one billion, three hundred six million, one hundred seventy thousand, seven hundred sixty-eight".