189803328 has 224 divisors, whose sum is σ = 611745792. Its totient is φ = 51148800.

The previous prime is 189803311. The next prime is 189803329. The reversal of 189803328 is 823308981.

It is a self number, because there is not a number n which added to its sum of digits gives 189803328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189803329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 851025 + ... + 851247.

It is an arithmetic number, because the mean of its divisors is an integer number (2731008).

Almost surely, 2^189803328 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 189803328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305872896).

189803328 is an abundant number, since it is smaller than the sum of its proper divisors (421942464).

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

189803328 is a wasteful number, since it uses less digits than its factorization.

189803328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 189803328 is about 13776.9128617408. The cubic root of 189803328 is about 574.6912802756.

The spelling of 189803328 in words is "one hundred eighty-nine million, eight hundred three thousand, three hundred twenty-eight".