189660190 has 8 divisors (see below), whose sum is σ = 341388360. Its totient is φ = 75864072.

The previous prime is 189660173. The next prime is 189660209. The reversal of 189660190 is 91066981.

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

It is a super-2 number, since 2×189660190² = 71941975341672200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9483000 + ... + 9483019.

It is an arithmetic number, because the mean of its divisors is an integer number (42673545).

Almost surely, 2^189660190 is an apocalyptic number.

189660190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189660190 is a deficient number, since it is larger than the sum of its proper divisors (151728170).

189660190 is a wasteful number, since it uses less digits than its factorization.

189660190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18966026.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 189660190 is about 13771.7170316559. The cubic root of 189660190 is about 574.5467783350.

The spelling of 189660190 in words is "one hundred eighty-nine million, six hundred sixty thousand, one hundred ninety".