188890082 has 4 divisors (see below), whose sum is σ = 283335126. Its totient is φ = 94445040.

The previous prime is 188890061. The next prime is 188890087. The reversal of 188890082 is 280098881.

188890082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 280098881 = 127 ⋅2205503.

It can be written as a sum of positive squares in only one way, i.e., 125193721 + 63696361 = 11189^2 + 7981^2 .

It is not an unprimeable number, because it can be changed into a prime (188890087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47222519 + ... + 47222522.

Almost surely, 2^188890082 is an apocalyptic number.

188890082 is a deficient number, since it is larger than the sum of its proper divisors (94445044).

188890082 is an equidigital number, since it uses as much as digits as its factorization.

188890082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94445043.

The product of its (nonzero) digits is 73728, while the sum is 44.

The square root of 188890082 is about 13743.7288244494. The cubic root of 188890082 is about 573.7680816334.

The spelling of 188890082 in words is "one hundred eighty-eight million, eight hundred ninety thousand, eighty-two".