1328841 has 18 divisors (see below), whose sum is σ = 2030730. Its totient is φ = 837216.

The previous prime is 1328827. The next prime is 1328843. The reversal of 1328841 is 1488231.

It can be written as a sum of positive squares in only one way, i.e., 1299600 + 29241 = 1140^2 + 171^2 .

It is not a de Polignac number, because 1328841 - 2⁶ = 1328777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1328843) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3045 + ... + 3453.

2^1328841 is an apocalyptic number.

It is an amenable number.

1328841 is a deficient number, since it is larger than the sum of its proper divisors (701889).

1328841 is a wasteful number, since it uses less digits than its factorization.

1328841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 431 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 1328841 is about 1152.7536597209. The cubic root of 1328841 is about 109.9404912282.

The spelling of 1328841 in words is "one million, three hundred twenty-eight thousand, eight hundred forty-one".