202020564 has 24 divisors (see below), whose sum is σ = 471875040. Its totient is φ = 67269664.

The previous prime is 202020563. The next prime is 202020587. The reversal of 202020564 is 465020202.

It is a self number, because there is not a number n which added to its sum of digits gives 202020564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202020563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3847 + ... + 20465.

It is an arithmetic number, because the mean of its divisors is an integer number (19661460).

Almost surely, 2^202020564 is an apocalyptic number.

It is an amenable number.

202020564 is an abundant number, since it is smaller than the sum of its proper divisors (269854476).

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

202020564 is a wasteful number, since it uses less digits than its factorization.

202020564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17639 (or 17637 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 202020564 is about 14213.3938241364. The cubic root of 202020564 is about 586.7663408182.

Adding to 202020564 its reverse (465020202), we get a palindrome (667040766).

The spelling of 202020564 in words is "two hundred two million, twenty thousand, five hundred sixty-four".