190511994 has 16 divisors (see below), whose sum is σ = 390317760. Its totient is φ = 61955040.

The previous prime is 190511989. The next prime is 190512017. The reversal of 190511994 is 499115091.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386974 + ... + 387465.

It is an arithmetic number, because the mean of its divisors is an integer number (24394860).

Almost surely, 2^190511994 is an apocalyptic number.

190511994 is an abundant number, since it is smaller than the sum of its proper divisors (199805766).

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

190511994 is a wasteful number, since it uses less digits than its factorization.

190511994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774485.

The product of its (nonzero) digits is 14580, while the sum is 39.

The square root of 190511994 is about 13802.6082317800. The cubic root of 190511994 is about 575.4056308587.

The spelling of 190511994 in words is "one hundred ninety million, five hundred eleven thousand, nine hundred ninety-four".