190938668 has 12 divisors (see below), whose sum is σ = 345665040. Its totient is φ = 92177232.

The previous prime is 190938659. The next prime is 190938673. The reversal of 190938668 is 866839091.

It is a super-2 number, since 2×190938668² = 72915149875228448, which contains 22 as substring.

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, 822896 + ... + 823127.

It is an arithmetic number, because the mean of its divisors is an integer number (28805420).

Almost surely, 2^190938668 is an apocalyptic number.

It is an amenable number.

190938668 is a deficient number, since it is larger than the sum of its proper divisors (154726372).

190938668 is a wasteful number, since it uses less digits than its factorization.

190938668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646056 (or 1646054 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 190938668 is about 13818.0558690432. The cubic root of 190938668 is about 575.8348734161.

The spelling of 190938668 in words is "one hundred ninety million, nine hundred thirty-eight thousand, six hundred sixty-eight".