20023262528 has 28 divisors (see below), whose sum is σ = 39986762292. Its totient is φ = 9947857920.

The previous prime is 20023262527. The next prime is 20023262531. The reversal of 20023262528 is 82526232002.

It can be written as a sum of positive squares in 2 ways, for example, as 13112998144 + 6910264384 = 114512^2 + 83128^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 20023262494 and 20023262503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023262527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986333 + ... + 1006428.

Almost surely, 2^20023262528 is an apocalyptic number.

It is an amenable number.

20023262528 is a deficient number, since it is larger than the sum of its proper divisors (19963499764).

20023262528 is a wasteful number, since it uses less digits than its factorization.

20023262528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992930 (or 1992920 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 20023262528 in words is "twenty billion, twenty-three million, two hundred sixty-two thousand, five hundred twenty-eight".