189028080 has 200 divisors, whose sum is σ = 678420864. Its totient is φ = 48729600.

The previous prime is 189028067. The next prime is 189028097. The reversal of 189028080 is 80820981.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 200410 + ... + 201350.

Almost surely, 2^189028080 is an apocalyptic number.

189028080 is a gapful number since it is divisible by the number (10) 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 189028080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339210432).

189028080 is an abundant number, since it is smaller than the sum of its proper divisors (489392784).

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

189028080 is a wasteful number, since it uses less digits than its factorization.

189028080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 189028080 is about 13748.7483066641. The cubic root of 189028080 is about 573.9077741162.

The spelling of 189028080 in words is "one hundred eighty-nine million, twenty-eight thousand, eighty".