1306660 has 24 divisors (see below), whose sum is σ = 2782080. Its totient is φ = 515424.

The previous prime is 1306633. The next prime is 1306661. The reversal of 1306660 is 666031.

It is not an unprimeable number, because it can be changed into a prime (1306661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167 + ... + 1993.

It is an arithmetic number, because the mean of its divisors is an integer number (115920).

2^1306660 is an apocalyptic number.

1306660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306660 is an abundant number, since it is smaller than the sum of its proper divisors (1475420).

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

1306660 is a wasteful number, since it uses less digits than its factorization.

1306660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1306660 is about 1143.0922972359. The cubic root of 1306660 is about 109.3253472586.

The spelling of 1306660 in words is "one million, three hundred six thousand, six hundred sixty".