190163886 has 16 divisors (see below), whose sum is σ = 414903168. Its totient is φ = 57625400.

The previous prime is 190163881. The next prime is 190163893. The reversal of 190163886 is 688361091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190163881) 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, 1440570 + ... + 1440701.

It is an arithmetic number, because the mean of its divisors is an integer number (25931448).

Almost surely, 2^190163886 is an apocalyptic number.

190163886 is an abundant number, since it is smaller than the sum of its proper divisors (224739282).

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

190163886 is a wasteful number, since it uses less digits than its factorization.

190163886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881287.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 190163886 is about 13789.9922407520. The cubic root of 190163886 is about 575.0549522780.

The spelling of 190163886 in words is "one hundred ninety million, one hundred sixty-three thousand, eight hundred eighty-six".