1296680 has 64 divisors (see below), whose sum is σ = 3646080. Its totient is φ = 403200.

The previous prime is 1296679. The next prime is 1296689. The reversal of 1296680 is 866921.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1296689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2870 + ... + 3290.

It is an arithmetic number, because the mean of its divisors is an integer number (56970).

2^1296680 is an apocalyptic number.

1296680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1296680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1823040).

1296680 is an abundant number, since it is smaller than the sum of its proper divisors (2349400).

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

1296680 is a wasteful number, since it uses less digits than its factorization.

1296680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1296680 is about 1138.7185780517. The cubic root of 1296680 is about 109.0463007853.

The spelling of 1296680 in words is "one million, two hundred ninety-six thousand, six hundred eighty".