188528742 has 64 divisors (see below), whose sum is σ = 454507200. Its totient is φ = 57692160.

The previous prime is 188528729. The next prime is 188528761. The reversal of 188528742 is 247825881.

It is a happy number.

188528742 is a `hidden beast` number, since 1 + 88 + 528 + 7 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35134 + ... + 40142.

It is an arithmetic number, because the mean of its divisors is an integer number (7101675).

Almost surely, 2^188528742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188528742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227253600).

188528742 is an abundant number, since it is smaller than the sum of its proper divisors (265978458).

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

188528742 is a wasteful number, since it uses less digits than its factorization.

188528742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078 (or 5072 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 188528742 is about 13730.5768997519. The cubic root of 188528742 is about 573.4019821200.

The spelling of 188528742 in words is "one hundred eighty-eight million, five hundred twenty-eight thousand, seven hundred forty-two".