190018966 has 8 divisors (see below), whose sum is σ = 285495264. Its totient is φ = 94853880.

The previous prime is 190018949. The next prime is 190018987. The reversal of 190018966 is 669810091.

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

It is a super-2 number, since 2×190018966² = 72214414879418312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76270 + ... + 78721.

It is an arithmetic number, because the mean of its divisors is an integer number (35686908).

Almost surely, 2^190018966 is an apocalyptic number.

190018966 is a deficient number, since it is larger than the sum of its proper divisors (95476298).

190018966 is a wasteful number, since it uses less digits than its factorization.

190018966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155606.

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

The square root of 190018966 is about 13784.7367040506. The cubic root of 190018966 is about 574.9088359566.

The spelling of 190018966 in words is "one hundred ninety million, eighteen thousand, nine hundred sixty-six".