445818 has 16 divisors (see below), whose sum is σ = 905760. Its totient is φ = 146256.

The previous prime is 445807. The next prime is 445829. The reversal of 445818 is 818544.

It is an interprime number because it is at equal distance from previous prime (445807) and next prime (445829).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153 + ... + 956.

It is an arithmetic number, because the mean of its divisors is an integer number (56610).

2⁴⁴⁵⁸¹⁸ is an apocalyptic number.

445818 is an abundant number, since it is smaller than the sum of its proper divisors (459942).

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

445818 is a wasteful number, since it uses less digits than its factorization.

445818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181.

The product of its digits is 5120, while the sum is 30.

The square root of 445818 is about 667.6960386284. The cubic root of 445818 is about 76.3928184180.

The spelling of 445818 in words is "four hundred forty-five thousand, eight hundred eighteen".