1306680 has 32 divisors (see below), whose sum is σ = 3920400. Its totient is φ = 348416.

The previous prime is 1306667. The next prime is 1306691. The reversal of 1306680 is 866031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 1306680.

It is a congruent number.

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, 5325 + ... + 5564.

2^1306680 is an apocalyptic number.

1306680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306680 is an abundant number, since it is smaller than the sum of its proper divisors (2613720).

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

1306680 is a wasteful number, since it uses less digits than its factorization.

1306680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10903 (or 10899 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1306680 is about 1143.1010454024. The cubic root of 1306680 is about 109.3259050410.

1306680 divided by its sum of digits (24) gives a palindrome (54445).

The spelling of 1306680 in words is "one million, three hundred six thousand, six hundred eighty".