20045528284 has 72 divisors (see below), whose sum is σ = 37750737024. Its totient is φ = 9295651200.

The previous prime is 20045528281. The next prime is 20045528297. The reversal of 20045528284 is 48282554002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045528281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35105719 + ... + 35106289.

It is an arithmetic number, because the mean of its divisors is an integer number (524315792).

Almost surely, 2^20045528284 is an apocalyptic number.

It is an amenable number.

20045528284 is a deficient number, since it is larger than the sum of its proper divisors (17705208740).

20045528284 is a wasteful number, since it uses less digits than its factorization.

20045528284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 40.

The spelling of 20045528284 in words is "twenty billion, forty-five million, five hundred twenty-eight thousand, two hundred eighty-four".