188628126 has 32 divisors (see below), whose sum is σ = 387924768. Its totient is φ = 61109760.

The previous prime is 188628047. The next prime is 188628157. The reversal of 188628126 is 621826881.

188628126 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70770 + ... + 73386.

It is an arithmetic number, because the mean of its divisors is an integer number (12122649).

Almost surely, 2^188628126 is an apocalyptic number.

188628126 is an abundant number, since it is smaller than the sum of its proper divisors (199296642).

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

188628126 is a wasteful number, since it uses less digits than its factorization.

188628126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956.

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

The square root of 188628126 is about 13734.1954988270. The cubic root of 188628126 is about 573.5027217937.

The spelling of 188628126 in words is "one hundred eighty-eight million, six hundred twenty-eight thousand, one hundred twenty-six".