445812 has 24 divisors (see below), whose sum is σ = 1053696. Its totient is φ = 146688.

The previous prime is 445807. The next prime is 445829. The reversal of 445812 is 218544.

It is a congruent number.

It is an unprimeable number.

445812 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 973 + ... + 1355.

It is an arithmetic number, because the mean of its divisors is an integer number (43904).

2⁴⁴⁵⁸¹² is an apocalyptic number.

It is an amenable number.

445812 is an abundant number, since it is smaller than the sum of its proper divisors (607884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445812 is a wasteful number, since it uses less digits than its factorization.

445812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 485 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 445812 is about 667.6915455508. The cubic root of 445812 is about 76.3924757079.

The spelling of 445812 in words is "four hundred forty-five thousand, eight hundred twelve".