330445 has 4 divisors (see below), whose sum is σ = 396540. Its totient is φ = 264352.

The previous prime is 330439. The next prime is 330469. The reversal of 330445 is 544033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544033 = 7 ⋅77719.

It can be written as a sum of positive squares in 2 ways, for example, as 94249 + 236196 = 307^2 + 486^2 .

It is a cyclic number.

It is not a de Polignac number, because 330445 - 2⁵ = 330413 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33040 + ... + 33049.

It is an arithmetic number, because the mean of its divisors is an integer number (99135).

2³³⁰⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

330445 is a deficient number, since it is larger than the sum of its proper divisors (66095).

330445 is an equidigital number, since it uses as much as digits as its factorization.

330445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66094.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 330445 is about 574.8434569515. The cubic root of 330445 is about 69.1352803518.

Adding to 330445 its reverse (544033), we get a palindrome (874478).

The spelling of 330445 in words is "three hundred thirty thousand, four hundred forty-five".