445204020 has 48 divisors (see below), whose sum is σ = 1286788608. Its totient is φ = 114890880.

The previous prime is 445204013. The next prime is 445204037. The reversal of 445204020 is 20402544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117819 + ... + 121538.

It is an arithmetic number, because the mean of its divisors is an integer number (26808096).

Almost surely, 2^445204020 is an apocalyptic number.

It is an amenable number.

445204020 is an abundant number, since it is smaller than the sum of its proper divisors (841584588).

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

445204020 is a wasteful number, since it uses less digits than its factorization.

445204020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239400 (or 239398 counting only the distinct ones).

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

The square root of 445204020 is about 21099.8582933630. The cubic root of 445204020 is about 763.5773294139.

Adding to 445204020 its reverse (20402544), we get a palindrome (465606564).

The spelling of 445204020 in words is "four hundred forty-five million, two hundred four thousand, twenty".