189453168 has 100 divisors (see below), whose sum is σ = 580654800. Its totient is φ = 59429376.

The previous prime is 189453163. The next prime is 189453179. The reversal of 189453168 is 861354981.

189453168 is a `hidden beast` number, since 189 + 453 + 16 + 8 = 666.

189453168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189453163) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17733 + ... + 26331.

It is an arithmetic number, because the mean of its divisors is an integer number (5806548).

Almost surely, 2^189453168 is an apocalyptic number.

189453168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189453168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290327400).

189453168 is an abundant number, since it is smaller than the sum of its proper divisors (391201632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189453168 is a wasteful number, since it uses less digits than its factorization.

189453168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8636 (or 8621 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 189453168 is about 13764.1987779892. The cubic root of 189453168 is about 574.3376549782.

The spelling of 189453168 in words is "one hundred eighty-nine million, four hundred fifty-three thousand, one hundred sixty-eight".