1328241 has 4 divisors (see below), whose sum is σ = 1770992. Its totient is φ = 885492.

The previous prime is 1328237. The next prime is 1328269. The reversal of 1328241 is 1428231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1328241 - 2² = 1328237 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1328231) 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, 221371 + ... + 221376.

It is an arithmetic number, because the mean of its divisors is an integer number (442748).

2^1328241 is an apocalyptic number.

It is an amenable number.

1328241 is a deficient number, since it is larger than the sum of its proper divisors (442751).

1328241 is an equidigital number, since it uses as much as digits as its factorization.

1328241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442750.

The product of its digits is 384, while the sum is 21.

The square root of 1328241 is about 1152.4933839289. The cubic root of 1328241 is about 109.9239419131.

The spelling of 1328241 in words is "one million, three hundred twenty-eight thousand, two hundred forty-one".