1260688 has 80 divisors (see below), whose sum is σ = 3124800. Its totient is φ = 483840.

The previous prime is 1260673. The next prime is 1260691. The reversal of 1260688 is 8860621.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43458 + ... + 43486.

It is an arithmetic number, because the mean of its divisors is an integer number (39060).

2^1260688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1260688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1562400).

1260688 is an abundant number, since it is smaller than the sum of its proper divisors (1864112).

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

1260688 is a wasteful number, since it uses less digits than its factorization.

1260688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 1260688 is about 1122.8036337668. The cubic root of 1260688 is about 108.0278848893.

The spelling of 1260688 in words is "one million, two hundred sixty thousand, six hundred eighty-eight".