445020 has 24 divisors (see below), whose sum is σ = 1246224. Its totient is φ = 118656.

The previous prime is 445019. The next prime is 445021. The reversal of 445020 is 20544.

It is an interprime number because it is at equal distance from previous prime (445019) and next prime (445021).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445021) 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, 3649 + ... + 3768.

It is an arithmetic number, because the mean of its divisors is an integer number (51926).

2⁴⁴⁵⁰²⁰ is an apocalyptic number.

It is an amenable number.

445020 is an abundant number, since it is smaller than the sum of its proper divisors (801204).

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

445020 is a wasteful number, since it uses less digits than its factorization.

445020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7429 (or 7427 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 445020 is about 667.0981936717. The cubic root of 445020 is about 76.3472109591.

Adding to 445020 its reverse (20544), we get a palindrome (465564).

The spelling of 445020 in words is "four hundred forty-five thousand, twenty".