188850638 has 4 divisors (see below), whose sum is σ = 283275960. Its totient is φ = 94425318.

The previous prime is 188850619. The next prime is 188850661. The reversal of 188850638 is 836058881.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 188850592 and 188850601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47212658 + ... + 47212661.

It is an arithmetic number, because the mean of its divisors is an integer number (70818990).

Almost surely, 2^188850638 is an apocalyptic number.

188850638 is a deficient number, since it is larger than the sum of its proper divisors (94425322).

188850638 is an equidigital number, since it uses as much as digits as its factorization.

188850638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94425321.

The product of its (nonzero) digits is 368640, while the sum is 47.

The square root of 188850638 is about 13742.2937677813. The cubic root of 188850638 is about 573.7281407968.

The spelling of 188850638 in words is "one hundred eighty-eight million, eight hundred fifty thousand, six hundred thirty-eight".