445330 has 8 divisors (see below), whose sum is σ = 801612. Its totient is φ = 178128.

The previous prime is 445321. The next prime is 445339. The reversal of 445330 is 33544.

It is an interprime number because it is at equal distance from previous prime (445321) and next prime (445339).

It can be written as a sum of positive squares in 2 ways, for example, as 444889 + 441 = 667^2 + 21^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 445298 and 445307.

It is not an unprimeable number, because it can be changed into a prime (445339) 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, 22257 + ... + 22276.

2⁴⁴⁵³³⁰ is an apocalyptic number.

445330 is a deficient number, since it is larger than the sum of its proper divisors (356282).

445330 is a wasteful number, since it uses less digits than its factorization.

445330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44540.

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

The square root of 445330 is about 667.3305028245. The cubic root of 445330 is about 76.3649346134.

Adding to 445330 its reverse (33544), we get a palindrome (478874).

The spelling of 445330 in words is "four hundred forty-five thousand, three hundred thirty".