20188852 has 6 divisors (see below), whose sum is σ = 35330498. Its totient is φ = 10094424.

The previous prime is 20188841. The next prime is 20188853. The reversal of 20188852 is 25888102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12931216 + 7257636 = 3596^2 + 2694^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20188853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2523603 + ... + 2523610.

Almost surely, 2^20188852 is an apocalyptic number.

It is an amenable number.

20188852 is a deficient number, since it is larger than the sum of its proper divisors (15141646).

20188852 is a wasteful number, since it uses less digits than its factorization.

20188852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5047217 (or 5047215 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 20188852 is about 4493.2006409685. The cubic root of 20188852 is about 272.2934585069.

The spelling of 20188852 in words is "twenty million, one hundred eighty-eight thousand, eight hundred fifty-two".