1276828 has 24 divisors (see below), whose sum is σ = 2637824. Its totient is φ = 529200.

The previous prime is 1276817. The next prime is 1276829. The reversal of 1276828 is 8286721.

It is a junction number, because it is equal to n+sod(n) for n = 1276793 and 1276802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133 + ... + 1603.

2^1276828 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 1276828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318912).

1276828 is an abundant number, since it is smaller than the sum of its proper divisors (1360996).

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

1276828 is a wasteful number, since it uses less digits than its factorization.

1276828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513 (or 1511 counting only the distinct ones).

The product of its digits is 10752, while the sum is 34.

The square root of 1276828 is about 1129.9681411438. The cubic root of 1276828 is about 108.4869415928.

The spelling of 1276828 in words is "one million, two hundred seventy-six thousand, eight hundred twenty-eight".