1326728 has 16 divisors (see below), whose sum is σ = 2679180. Its totient is φ = 612288.

The previous prime is 1326727. The next prime is 1326739. The reversal of 1326728 is 8276231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1295044 + 31684 = 1138^2 + 178^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1326728.

It is not an unprimeable number, because it can be changed into a prime (1326727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6275 + ... + 6482.

2^1326728 is an apocalyptic number.

It is an amenable number.

1326728 is an abundant number, since it is smaller than the sum of its proper divisors (1352452).

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

1326728 is a wasteful number, since it uses less digits than its factorization.

1326728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12776 (or 12772 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 1326728 is about 1151.8367939947. The cubic root of 1326728 is about 109.8821879157.

The spelling of 1326728 in words is "one million, three hundred twenty-six thousand, seven hundred twenty-eight".