189214768 has 40 divisors (see below), whose sum is σ = 390600000. Its totient is φ = 88536384.

The previous prime is 189214747. The next prime is 189214769. The reversal of 189214768 is 867412981.

It is not an unprimeable number, because it can be changed into a prime (189214769) 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 7 ways as a sum of consecutive naturals, for example, 21483 + ... + 28981.

It is an arithmetic number, because the mean of its divisors is an integer number (9765000).

Almost surely, 2^189214768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189214768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195300000).

189214768 is an abundant number, since it is smaller than the sum of its proper divisors (201385232).

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

189214768 is a wasteful number, since it uses less digits than its factorization.

189214768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7609 (or 7603 counting only the distinct ones).

The product of its digits is 193536, while the sum is 46.

The square root of 189214768 is about 13755.5359037734. The cubic root of 189214768 is about 574.0966463058.

The spelling of 189214768 in words is "one hundred eighty-nine million, two hundred fourteen thousand, seven hundred sixty-eight".