189784222 has 8 divisors (see below), whose sum is σ = 284757696. Its totient is φ = 94864992.

The previous prime is 189784193. The next prime is 189784229. The reversal of 189784222 is 222487981.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189784229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3243 + ... + 19750.

It is an arithmetic number, because the mean of its divisors is an integer number (35594712).

Almost surely, 2^189784222 is an apocalyptic number.

189784222 is a deficient number, since it is larger than the sum of its proper divisors (94973474).

189784222 is a wasteful number, since it uses less digits than its factorization.

189784222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27122.

The product of its digits is 129024, while the sum is 43.

The square root of 189784222 is about 13776.2194378574. The cubic root of 189784222 is about 574.6719964197.

The spelling of 189784222 in words is "one hundred eighty-nine million, seven hundred eighty-four thousand, two hundred twenty-two".