188040098 has 4 divisors (see below), whose sum is σ = 282060150. Its totient is φ = 94020048.

The previous prime is 188040059. The next prime is 188040103. The reversal of 188040098 is 890040881.

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

It can be written as a sum of positive squares in only one way, i.e., 156825529 + 31214569 = 12523^2 + 5587^2 .

It is a Curzon 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, 47010023 + ... + 47010026.

Almost surely, 2^188040098 is an apocalyptic number.

188040098 is a deficient number, since it is larger than the sum of its proper divisors (94020052).

188040098 is an equidigital number, since it uses as much as digits as its factorization.

188040098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94020051.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 188040098 is about 13712.7713464493. The cubic root of 188040098 is about 572.9061569974.

The spelling of 188040098 in words is "one hundred eighty-eight million, forty thousand, ninety-eight".