1306828 has 6 divisors (see below), whose sum is σ = 2286956. Its totient is φ = 653412.

The previous prime is 1306819. The next prime is 1306829. The reversal of 1306828 is 8286031.

It is a junction number, because it is equal to n+sod(n) for n = 1306796 and 1306805.

It is not an unprimeable number, because it can be changed into a prime (1306829) by changing a digit.

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 as a sum of consecutive naturals, namely, 163350 + ... + 163357.

2^1306828 is an apocalyptic number.

It is an amenable number.

1306828 is a deficient number, since it is larger than the sum of its proper divisors (980128).

1306828 is a wasteful number, since it uses less digits than its factorization.

1306828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326711 (or 326709 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1306828 is about 1143.1657797538. The cubic root of 1306828 is about 109.3300324537.

The spelling of 1306828 in words is "one million, three hundred six thousand, eight hundred twenty-eight".