189559428 has 48 divisors (see below), whose sum is σ = 481656000. Its totient is φ = 57794688.

The previous prime is 189559417. The next prime is 189559453. The reversal of 189559428 is 824955981.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7723 + ... + 20946.

It is an arithmetic number, because the mean of its divisors is an integer number (10034500).

Almost surely, 2^189559428 is an apocalyptic number.

It is an amenable number.

189559428 is an abundant number, since it is smaller than the sum of its proper divisors (292096572).

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

189559428 is a wasteful number, since it uses less digits than its factorization.

189559428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28724 (or 28722 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 51.

The square root of 189559428 is about 13768.0582508936. The cubic root of 189559428 is about 574.4450125791.

The spelling of 189559428 in words is "one hundred eighty-nine million, five hundred fifty-nine thousand, four hundred twenty-eight".