188089038 has 12 divisors (see below), whose sum is σ = 407526288. Its totient is φ = 62696340.

The previous prime is 188089007. The next prime is 188089043. The reversal of 188089038 is 830980881.

It is a junction number, because it is equal to n+sod(n) for n = 188088984 and 188089002.

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 in 5 ways as a sum of consecutive naturals, for example, 5224678 + ... + 5224713.

It is an arithmetic number, because the mean of its divisors is an integer number (33960524).

Almost surely, 2^188089038 is an apocalyptic number.

188089038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

188089038 is an abundant number, since it is smaller than the sum of its proper divisors (219437250).

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

188089038 is a wasteful number, since it uses less digits than its factorization.

188089038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10449399 (or 10449396 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 188089038 is about 13714.5556982354. Note that the first 3 decimals coincide. The cubic root of 188089038 is about 572.9558548997.

The spelling of 188089038 in words is "one hundred eighty-eight million, eighty-nine thousand, thirty-eight".