189388196 has 6 divisors (see below), whose sum is σ = 331429350. Its totient is φ = 94694096.

The previous prime is 189388193. The next prime is 189388217. The reversal of 189388196 is 691883981.

189388196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 182628196 + 6760000 = 13514^2 + 2600^2 .

It is not an unprimeable number, because it can be changed into a prime (189388193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23673521 + ... + 23673528.

It is an arithmetic number, because the mean of its divisors is an integer number (55238225).

Almost surely, 2^189388196 is an apocalyptic number.

It is an amenable number.

189388196 is a deficient number, since it is larger than the sum of its proper divisors (142041154).

189388196 is a wasteful number, since it uses less digits than its factorization.

189388196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47347053 (or 47347051 counting only the distinct ones).

The product of its digits is 746496, while the sum is 53.

The square root of 189388196 is about 13761.8383946332. The cubic root of 189388196 is about 574.2719920792.

The spelling of 189388196 in words is "one hundred eighty-nine million, three hundred eighty-eight thousand, one hundred ninety-six".