190191992 has 16 divisors (see below), whose sum is σ = 356756400. Its totient is φ = 95056960.

The previous prime is 190191983. The next prime is 190191997. The reversal of 190191992 is 299191091.

It is a happy number.

190191992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190191997) 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, 34892 + ... + 39972.

It is an arithmetic number, because the mean of its divisors is an integer number (22297275).

Almost surely, 2^190191992 is an apocalyptic number.

It is an amenable number.

190191992 is a deficient number, since it is larger than the sum of its proper divisors (166564408).

190191992 is a wasteful number, since it uses less digits than its factorization.

190191992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9766 (or 9762 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 41.

The square root of 190191992 is about 13791.0112754649. The cubic root of 190191992 is about 575.0832816989.

The spelling of 190191992 in words is "one hundred ninety million, one hundred ninety-one thousand, nine hundred ninety-two".