445004 has 24 divisors (see below), whose sum is σ = 930048. Its totient is φ = 182160.

The previous prime is 445001. The next prime is 445019. The reversal of 445004 is 400544.

445004 is nontrivially palindromic in base 13.

It is not an unprimeable number, because it can be changed into a prime (445001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299 + ... + 989.

It is an arithmetic number, because the mean of its divisors is an integer number (38752).

2⁴⁴⁵⁰⁰⁴ 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 445004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465024).

445004 is an abundant number, since it is smaller than the sum of its proper divisors (485044).

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

445004 is a wasteful number, since it uses less digits than its factorization.

445004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 445004 is about 667.0862013263. The cubic root of 445004 is about 76.3462959665.

Adding to 445004 its reverse (400544), we get a palindrome (845548).

The spelling of 445004 in words is "four hundred forty-five thousand, four".