194869312 has 56 divisors (see below), whose sum is σ = 425269152. Its totient is φ = 87859200.

The previous prime is 194869307. The next prime is 194869313. The reversal of 194869312 is 213968491.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (194869313) 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 7 ways as a sum of consecutive naturals, for example, 91168 + ... + 93280.

It is an arithmetic number, because the mean of its divisors is an integer number (7594092).

Almost surely, 2^194869312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194869312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212634576).

194869312 is an abundant number, since it is smaller than the sum of its proper divisors (230399840).

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

194869312 is a wasteful number, since it uses less digits than its factorization.

194869312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267 (or 2257 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 194869312 is about 13959.5598784489. The cubic root of 194869312 is about 579.7594246024.

The spelling of 194869312 in words is "one hundred ninety-four million, eight hundred sixty-nine thousand, three hundred twelve".