189761924 has 24 divisors (see below), whose sum is σ = 370701408. Its totient is φ = 84248640.

The previous prime is 189761909. The next prime is 189761927. The reversal of 189761924 is 429167981.

It is not an unprimeable number, because it can be changed into a prime (189761927) 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 7 ways as a sum of consecutive naturals, for example, 48257 + ... + 52040.

It is an arithmetic number, because the mean of its divisors is an integer number (15445892).

Almost surely, 2^189761924 is an apocalyptic number.

It is an amenable number.

189761924 is a deficient number, since it is larger than the sum of its proper divisors (180939484).

189761924 is a wasteful number, since it uses less digits than its factorization.

189761924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100355 (or 100353 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 189761924 is about 13775.4101209365. The cubic root of 189761924 is about 574.6494892132.

The spelling of 189761924 in words is "one hundred eighty-nine million, seven hundred sixty-one thousand, nine hundred twenty-four".