445300 has 36 divisors (see below), whose sum is σ = 995596. Its totient is φ = 172800.

The previous prime is 445297. The next prime is 445307. The reversal of 445300 is 3544.

445300 is nontrivially palindromic in base 9.

It can be written as a sum of positive squares in 6 ways, for example, as 70756 + 374544 = 266^2 + 612^2 .

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445307) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6064 + ... + 6136.

2⁴⁴⁵³⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497798).

445300 is an abundant number, since it is smaller than the sum of its proper divisors (550296).

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

445300 is a wasteful number, since it uses less digits than its factorization.

445300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 445300 is about 667.3080248281. The cubic root of 445300 is about 76.3632197806.

Adding to 445300 its reverse (3544), we get a palindrome (448844).

The spelling of 445300 in words is "four hundred forty-five thousand, three hundred".