445856736020 has 24 divisors (see below), whose sum is σ = 951648314568. Its totient is φ = 175419043200.

The previous prime is 445856736011. The next prime is 445856736049. The reversal of 445856736020 is 20637658544.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36095440144 + 409761295876 = 189988^2 + 640126^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 445856736020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182726951 + ... + 182729390.

It is an arithmetic number, because the mean of its divisors is an integer number (39652013107).

Almost surely, 2^445856736020 is an apocalyptic number.

It is an amenable number.

445856736020 is an abundant number, since it is smaller than the sum of its proper divisors (505791578548).

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

445856736020 is a wasteful number, since it uses less digits than its factorization.

445856736020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365456411 (or 365456409 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 445856736020 in words is "four hundred forty-five billion, eight hundred fifty-six million, seven hundred thirty-six thousand, twenty".