328458241 has 4 divisors (see below), whose sum is σ = 347779332. Its totient is φ = 309137152.

The previous prime is 328458227. The next prime is 328458281. The reversal of 328458241 is 142854823.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142854823 = 769 ⋅185767.

It can be written as a sum of positive squares in 2 ways, for example, as 269091216 + 59367025 = 16404^2 + 7705^2 .

It is a cyclic number.

It is not a de Polignac number, because 328458241 - 2⁹ = 328457729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 328458241.

It is not an unprimeable number, because it can be changed into a prime (328458211) 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 in 3 ways as a sum of consecutive naturals, for example, 9660520 + ... + 9660553.

It is an arithmetic number, because the mean of its divisors is an integer number (86944833).

Almost surely, 2^328458241 is an apocalyptic number.

It is an amenable number.

328458241 is a deficient number, since it is larger than the sum of its proper divisors (19321091).

328458241 is a wasteful number, since it uses less digits than its factorization.

328458241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19321090.

The product of its digits is 61440, while the sum is 37.

The square root of 328458241 is about 18123.4169239688. The cubic root of 328458241 is about 689.9644601172.

The spelling of 328458241 in words is "three hundred twenty-eight million, four hundred fifty-eight thousand, two hundred forty-one".