194339868 has 48 divisors (see below), whose sum is σ = 469948416. Its totient is φ = 62441280.

The previous prime is 194339863. The next prime is 194339879. The reversal of 194339868 is 868933491.

It is a self number, because there is not a number n which added to its sum of digits gives 194339868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194339861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108105 + ... + 109887.

It is an arithmetic number, because the mean of its divisors is an integer number (9790592).

Almost surely, 2^194339868 is an apocalyptic number.

It is an amenable number.

194339868 is an abundant number, since it is smaller than the sum of its proper divisors (275608548).

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

194339868 is a wasteful number, since it uses less digits than its factorization.

194339868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114 (or 2112 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 194339868 is about 13940.5834885058. The cubic root of 194339868 is about 579.2338953778.

The spelling of 194339868 in words is "one hundred ninety-four million, three hundred thirty-nine thousand, eight hundred sixty-eight".