194491072 has 28 divisors (see below), whose sum is σ = 386471160. Its totient is φ = 97112576.

The previous prime is 194491061. The next prime is 194491109. The reversal of 194491072 is 270194491.

194491072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 59004 + ... + 62212.

Almost surely, 2^194491072 is an apocalyptic number.

It is an amenable number.

194491072 is a deficient number, since it is larger than the sum of its proper divisors (191980088).

194491072 is an equidigital number, since it uses as much as digits as its factorization.

194491072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4168 (or 4158 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 194491072 is about 13946.0055930005. The cubic root of 194491072 is about 579.3840786254.

The spelling of 194491072 in words is "one hundred ninety-four million, four hundred ninety-one thousand, seventy-two".