189681224 has 16 divisors (see below), whose sum is σ = 361681200. Its totient is φ = 93232912.

The previous prime is 189681197. The next prime is 189681227. The reversal of 189681224 is 422186981.

It is not an unprimeable number, because it can be changed into a prime (189681227) by changing a digit.

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, 200462 + ... + 201405.

It is an arithmetic number, because the mean of its divisors is an integer number (22605075).

Almost surely, 2^189681224 is an apocalyptic number.

It is an amenable number.

189681224 is a deficient number, since it is larger than the sum of its proper divisors (171999976).

189681224 is a wasteful number, since it uses less digits than its factorization.

189681224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401932 (or 401928 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 189681224 is about 13772.4806770603. The cubic root of 189681224 is about 574.5680173208.

The spelling of 189681224 in words is "one hundred eighty-nine million, six hundred eighty-one thousand, two hundred twenty-four".