20200188 has 24 divisors (see below), whose sum is σ = 47270608. Its totient is φ = 6713856.

The previous prime is 20200181. The next prime is 20200223. The reversal of 20200188 is 88100202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200181) 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, 2220 + ... + 6732.

Almost surely, 2^20200188 is an apocalyptic number.

It is an amenable number.

20200188 is an abundant number, since it is smaller than the sum of its proper divisors (27070420).

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

20200188 is a wasteful number, since it uses less digits than its factorization.

20200188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4893 (or 4891 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 20200188 is about 4494.4619255257. The cubic root of 20200188 is about 272.3444130485.

The spelling of 20200188 in words is "twenty million, two hundred thousand, one hundred eighty-eight".