445670 has 16 divisors (see below), whose sum is σ = 822528. Its totient is φ = 173760.

The previous prime is 445657. The next prime is 445691. The reversal of 445670 is 76544.

It is a d-powerful number, because it can be written as 4⁸ + 4⁹ + 6³ + 5³ + 7⁶ + 0 .

It is a congruent number.

It is an unprimeable number.

445670 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, 134 + ... + 953.

It is an arithmetic number, because the mean of its divisors is an integer number (51408).

2⁴⁴⁵⁶⁷⁰ is an apocalyptic number.

445670 is a deficient number, since it is larger than the sum of its proper divisors (376858).

445670 is a wasteful number, since it uses less digits than its factorization.

445670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 445670 is about 667.5852005550. The cubic root of 445670 is about 76.3843640050.

The spelling of 445670 in words is "four hundred forty-five thousand, six hundred seventy".