445860 has 36 divisors (see below), whose sum is σ = 1352988. Its totient is φ = 118848.

The previous prime is 445853. The next prime is 445871. The reversal of 445860 is 68544.

It can be written as a sum of positive squares in 2 ways, for example, as 191844 + 254016 = 438^2 + 504^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×445860² = 397582279200, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445860.

It is an unprimeable number.

445860 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1059 + ... + 1418.

It is an arithmetic number, because the mean of its divisors is an integer number (37583).

2⁴⁴⁵⁸⁶⁰ is an apocalyptic number.

It is an amenable number.

445860 is an abundant number, since it is smaller than the sum of its proper divisors (907128).

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

445860 is a wasteful number, since it uses less digits than its factorization.

445860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492 (or 2487 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 445860 is about 667.7274893248. The cubic root of 445860 is about 76.3952173025.

The spelling of 445860 in words is "four hundred forty-five thousand, eight hundred sixty".