190969188 has 24 divisors (see below), whose sum is σ = 445828992. Its totient is φ = 63622944.

The previous prime is 190969183. The next prime is 190969201. The reversal of 190969188 is 881969091.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 190969188.

It is not an unprimeable number, because it can be changed into a prime (190969183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32406 + ... + 37842.

It is an arithmetic number, because the mean of its divisors is an integer number (18576208).

Almost surely, 2^190969188 is an apocalyptic number.

It is an amenable number.

190969188 is an abundant number, since it is smaller than the sum of its proper divisors (254859804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190969188 is a wasteful number, since it uses less digits than its factorization.

190969188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8371 (or 8369 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 51.

The square root of 190969188 is about 13819.1601770875. The cubic root of 190969188 is about 575.8655526288.

The spelling of 190969188 in words is "one hundred ninety million, nine hundred sixty-nine thousand, one hundred eighty-eight".