189211418 has 8 divisors (see below), whose sum is σ = 309618720. Its totient is φ = 86005180.

The previous prime is 189211403. The next prime is 189211441. The reversal of 189211418 is 814112981.

189211418 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4300238 + ... + 4300281.

It is an arithmetic number, because the mean of its divisors is an integer number (38702340).

Almost surely, 2^189211418 is an apocalyptic number.

189211418 is a deficient number, since it is larger than the sum of its proper divisors (120407302).

189211418 is a wasteful number, since it uses less digits than its factorization.

189211418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8600532.

The product of its digits is 4608, while the sum is 35.

The square root of 189211418 is about 13755.4141340783. The cubic root of 189211418 is about 574.0932582068.

The spelling of 189211418 in words is "one hundred eighty-nine million, two hundred eleven thousand, four hundred eighteen".