445044 has 12 divisors (see below), whose sum is σ = 1038464. Its totient is φ = 148344.

The previous prime is 445033. The next prime is 445069. The reversal of 445044 is 440544.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 445044.

It is a congruent number.

It is an unprimeable number.

445044 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 3 ways as a sum of consecutive naturals, for example, 18532 + ... + 18555.

2⁴⁴⁵⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

445044 is an abundant number, since it is smaller than the sum of its proper divisors (593420).

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

445044 is a wasteful number, since it uses less digits than its factorization.

445044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37094 (or 37092 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 445044 is about 667.1161817855. The cubic root of 445044 is about 76.3485834069.

Adding to 445044 its reverse (440544), we get a palindrome (885588).

The spelling of 445044 in words is "four hundred forty-five thousand, forty-four".