188900016 has 20 divisors (see below), whose sum is σ = 487991832. Its totient is φ = 62966656.

The previous prime is 188899987. The next prime is 188900017. The reversal of 188900016 is 610009881.

It is a self number, because there is not a number n which added to its sum of digits gives 188900016.

It is not an unprimeable number, because it can be changed into a prime (188900017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967661 + ... + 1967756.

Almost surely, 2^188900016 is an apocalyptic number.

188900016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

188900016 is an abundant number, since it is smaller than the sum of its proper divisors (299091816).

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

188900016 is a wasteful number, since it uses less digits than its factorization.

188900016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935428 (or 3935422 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 188900016 is about 13744.0902208913. The cubic root of 188900016 is about 573.7781398855.

Adding to 188900016 its reverse (610009881), we get a palindrome (798909897).

The spelling of 188900016 in words is "one hundred eighty-eight million, nine hundred thousand, sixteen".