1260728 has 32 divisors (see below), whose sum is σ = 2764800. Its totient is φ = 527712.

The previous prime is 1260719. The next prime is 1260731. The reversal of 1260728 is 8270621.

It is a junction number, because it is equal to n+sod(n) for n = 1260697 and 1260706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2393 + ... + 2871.

It is an arithmetic number, because the mean of its divisors is an integer number (86400).

2^1260728 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 1260728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382400).

1260728 is an abundant number, since it is smaller than the sum of its proper divisors (1504072).

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

1260728 is a wasteful number, since it uses less digits than its factorization.

1260728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1260728 is about 1122.8214461792. The cubic root of 1260728 is about 108.0290274056.

The spelling of 1260728 in words is "one million, two hundred sixty thousand, seven hundred twenty-eight".