190668236 has 24 divisors (see below), whose sum is σ = 364869120. Its totient is φ = 86461200.

The previous prime is 190668221. The next prime is 190668239. The reversal of 190668236 is 632866091.

It is a junction number, because it is equal to n+sod(n) for n = 190668193 and 190668202.

It is not an unprimeable number, because it can be changed into a prime (190668239) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14381 + ... + 24251.

It is an arithmetic number, because the mean of its divisors is an integer number (15202880).

Almost surely, 2^190668236 is an apocalyptic number.

It is an amenable number.

190668236 is a deficient number, since it is larger than the sum of its proper divisors (174200884).

190668236 is a wasteful number, since it uses less digits than its factorization.

190668236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10325 (or 10323 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 190668236 is about 13808.2669441172. The cubic root of 190668236 is about 575.5628877310.

The spelling of 190668236 in words is "one hundred ninety million, six hundred sixty-eight thousand, two hundred thirty-six".