189433108 has 12 divisors (see below), whose sum is σ = 351008532. Its totient is φ = 89144960.

The previous prime is 189433099. The next prime is 189433109. The reversal of 189433108 is 801334981.

It can be written as a sum of positive squares in 2 ways, for example, as 151831684 + 37601424 = 12322^2 + 6132^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189433109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392823 + ... + 1392958.

It is an arithmetic number, because the mean of its divisors is an integer number (29250711).

Almost surely, 2^189433108 is an apocalyptic number.

It is an amenable number.

189433108 is a deficient number, since it is larger than the sum of its proper divisors (161575424).

189433108 is a wasteful number, since it uses less digits than its factorization.

189433108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785802 (or 2785800 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 189433108 is about 13763.4700566391. The cubic root of 189433108 is about 574.3173832664.

The spelling of 189433108 in words is "one hundred eighty-nine million, four hundred thirty-three thousand, one hundred eight".