188042928 has 20 divisors (see below), whose sum is σ = 485777688. Its totient is φ = 62680960.

The previous prime is 188042927. The next prime is 188042947. The reversal of 188042928 is 829240881.

188042928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 188042928.

It is not an unprimeable number, because it can be changed into a prime (188042923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1958733 + ... + 1958828.

Almost surely, 2^188042928 is an apocalyptic number.

It is an amenable number.

188042928 is an abundant number, since it is smaller than the sum of its proper divisors (297734760).

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

188042928 is a wasteful number, since it uses less digits than its factorization.

188042928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917572 (or 3917566 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 188042928 is about 13712.8745345387. The cubic root of 188042928 is about 572.9090310587.

The spelling of 188042928 in words is "one hundred eighty-eight million, forty-two thousand, nine hundred twenty-eight".