189104928 has 48 divisors (see below), whose sum is σ = 509826240. Its totient is φ = 61330176.

The previous prime is 189104917. The next prime is 189104933. The reversal of 189104928 is 829401981.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 189104928.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23068 + ... + 30171.

It is an arithmetic number, because the mean of its divisors is an integer number (10621380).

Almost surely, 2^189104928 is an apocalyptic number.

It is an amenable number.

189104928 is an abundant number, since it is smaller than the sum of its proper divisors (320721312).

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

189104928 is a wasteful number, since it uses less digits than its factorization.

189104928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53289 (or 53281 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 189104928 is about 13751.5427498154. The cubic root of 189104928 is about 573.9855362654.

The spelling of 189104928 in words is "one hundred eighty-nine million, one hundred four thousand, nine hundred twenty-eight".