188720196 has 48 divisors (see below), whose sum is σ = 532861056. Its totient is φ = 50747904.

The previous prime is 188720167. The next prime is 188720209. The reversal of 188720196 is 691027881.

188720196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64651 + ... + 67506.

It is an arithmetic number, because the mean of its divisors is an integer number (11101272).

Almost surely, 2^188720196 is an apocalyptic number.

It is an amenable number.

188720196 is an abundant number, since it is smaller than the sum of its proper divisors (344140860).

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

188720196 is a wasteful number, since it uses less digits than its factorization.

188720196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132188 (or 132186 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 188720196 is about 13737.5469425950. The cubic root of 188720196 is about 573.5960161291.

The spelling of 188720196 in words is "one hundred eighty-eight million, seven hundred twenty thousand, one hundred ninety-six".