1306686960 has 60 divisors (see below), whose sum is σ = 4388292792. Its totient is φ = 348449664.

The previous prime is 1306686949. The next prime is 1306686961. The reversal of 1306686960 is 696866031.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×1306686960² = 3414861622868083200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306686961) 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 11 ways as a sum of consecutive naturals, for example, 906702 + ... + 908141.

Almost surely, 2^1306686960 is an apocalyptic number.

1306686960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306686960 is an abundant number, since it is smaller than the sum of its proper divisors (3081605832).

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

1306686960 is a wasteful number, since it uses less digits than its factorization.

1306686960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814862 (or 1814853 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 1306686960 is about 36148.1252625914. The cubic root of 1306686960 is about 1093.2609914790.

The spelling of 1306686960 in words is "one billion, three hundred six million, six hundred eighty-six thousand, nine hundred sixty".