840010194 has 24 divisors (see below), whose sum is σ = 1825250700. Its totient is φ = 279199008.

The previous prime is 840010189. The next prime is 840010219. The reversal of 840010194 is 491010048.

It can be written as a sum of positive squares in 2 ways, for example, as 813105225 + 26904969 = 28515^2 + 5187^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60577 + ... + 73140.

Almost surely, 2^840010194 is an apocalyptic number.

840010194 is an abundant number, since it is smaller than the sum of its proper divisors (985240506).

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

840010194 is a wasteful number, since it uses less digits than its factorization.

840010194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134074 (or 134071 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 840010194 is about 28982.9293550531. The cubic root of 840010194 is about 943.5426128869.

The spelling of 840010194 in words is "eight hundred forty million, ten thousand, one hundred ninety-four".