445066 has 4 divisors (see below), whose sum is σ = 667602. Its totient is φ = 222532.

The previous prime is 445033. The next prime is 445069. The reversal of 445066 is 660544.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 326041 + 119025 = 571^2 + 345^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 445066.

It is not an unprimeable number, because it can be changed into a prime (445069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111265 + ... + 111268.

2⁴⁴⁵⁰⁶⁶ is an apocalyptic number.

445066 is a deficient number, since it is larger than the sum of its proper divisors (222536).

445066 is a wasteful number, since it uses less digits than its factorization.

445066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222535.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 445066 is about 667.1326704637. The cubic root of 445066 is about 76.3498414407.

The spelling of 445066 in words is "four hundred forty-five thousand, sixty-six".