188049705 has 8 divisors (see below), whose sum is σ = 300879552. Its totient is φ = 100293168.

The previous prime is 188049629. The next prime is 188049709. The reversal of 188049705 is 507940881.

188049705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 188049705 - 2¹⁶ = 187984169 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (188049709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6268309 + ... + 6268338.

It is an arithmetic number, because the mean of its divisors is an integer number (37609944).

Almost surely, 2^188049705 is an apocalyptic number.

188049705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

188049705 is a deficient number, since it is larger than the sum of its proper divisors (112829847).

188049705 is a wasteful number, since it uses less digits than its factorization.

188049705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12536655.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 188049705 is about 13713.1216358640. The cubic root of 188049705 is about 572.9159134550.

The spelling of 188049705 in words is "one hundred eighty-eight million, forty-nine thousand, seven hundred five".