189866076 has 12 divisors (see below), whose sum is σ = 443020872. Its totient is φ = 63288688.

The previous prime is 189866063. The next prime is 189866101. The reversal of 189866076 is 670668981.

It is a happy number.

189866076 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 7911075 + ... + 7911098.

It is an arithmetic number, because the mean of its divisors is an integer number (36918406).

Almost surely, 2^189866076 is an apocalyptic number.

It is an amenable number.

189866076 is an abundant number, since it is smaller than the sum of its proper divisors (253154796).

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

189866076 is a wasteful number, since it uses less digits than its factorization.

189866076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15822180 (or 15822178 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 189866076 is about 13779.1899616777. The cubic root of 189866076 is about 574.7546032878.

The spelling of 189866076 in words is "one hundred eighty-nine million, eight hundred sixty-six thousand, seventy-six".