445580 has 12 divisors (see below), whose sum is σ = 935760. Its totient is φ = 178224.

The previous prime is 445573. The next prime is 445583. The reversal of 445580 is 85544.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11120 + ... + 11159.

It is an arithmetic number, because the mean of its divisors is an integer number (77980).

2⁴⁴⁵⁵⁸⁰ is an apocalyptic number.

It is an amenable number.

445580 is an abundant number, since it is smaller than the sum of its proper divisors (490180).

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

445580 is a wasteful number, since it uses less digits than its factorization.

445580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22288 (or 22286 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 445580 is about 667.5177900251. The cubic root of 445580 is about 76.3792218927.

The spelling of 445580 in words is "four hundred forty-five thousand, five hundred eighty".