1306866 has 16 divisors (see below), whose sum is σ = 2851488. Its totient is φ = 396000.

The previous prime is 1306853. The next prime is 1306873. The reversal of 1306866 is 6686031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9835 + ... + 9966.

It is an arithmetic number, because the mean of its divisors is an integer number (178218).

2^1306866 is an apocalyptic number.

1306866 is an abundant number, since it is smaller than the sum of its proper divisors (1544622).

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

1306866 is a wasteful number, since it uses less digits than its factorization.

1306866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19817.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1306866 is about 1143.1824001444. The cubic root of 1306866 is about 109.3310921446.

It can be divided in two parts, 130 and 6866, that added together give a palindrome (6996).

The spelling of 1306866 in words is "one million, three hundred six thousand, eight hundred sixty-six".