445224436020 has 432 divisors, whose sum is σ = 1708323926400. Its totient is φ = 93022981632.

The previous prime is 445224436009. The next prime is 445224436039. The reversal of 445224436020 is 20634422544.

445224436020 is a `hidden beast` number, since 4 + 4 + 5 + 2 + 2 + 4 + 43 + 602 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 11791131 + ... + 11828829.

Almost surely, 2^445224436020 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 445224436020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (854161963200).

445224436020 is an abundant number, since it is smaller than the sum of its proper divisors (1263099490380).

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

445224436020 is a wasteful number, since it uses less digits than its factorization.

445224436020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37844 (or 37832 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 445224436020 its reverse (20634422544), we get a palindrome (465858858564).

The spelling of 445224436020 in words is "four hundred forty-five billion, two hundred twenty-four million, four hundred thirty-six thousand, twenty".