189469666 has 8 divisors (see below), whose sum is σ = 286087104. Its totient is φ = 94107300.

The previous prime is 189469663. The next prime is 189469703. The reversal of 189469666 is 666964981.

189469666 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 an unprimeable number, because it can be changed into a prime (189469663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313390 + ... + 313993.

It is an arithmetic number, because the mean of its divisors is an integer number (35760888).

Almost surely, 2^189469666 is an apocalyptic number.

189469666 is a deficient number, since it is larger than the sum of its proper divisors (96617438).

189469666 is a wasteful number, since it uses less digits than its factorization.

189469666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627536.

The product of its digits is 3359232, while the sum is 55.

The square root of 189469666 is about 13764.7980733464. The cubic root of 189469666 is about 574.3543260245.

The spelling of 189469666 in words is "one hundred eighty-nine million, four hundred sixty-nine thousand, six hundred sixty-six".