194830688 has 48 divisors (see below), whose sum is σ = 423190656. Its totient is φ = 87720960.

The previous prime is 194830687. The next prime is 194830709. The reversal of 194830688 is 886038491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194830687) 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, 11345 + ... + 22767.

It is an arithmetic number, because the mean of its divisors is an integer number (8816472).

Almost surely, 2^194830688 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 194830688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211595328).

194830688 is an abundant number, since it is smaller than the sum of its proper divisors (228359968).

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

194830688 is a wasteful number, since it uses less digits than its factorization.

194830688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11487 (or 11479 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 194830688 is about 13958.1763851873. The cubic root of 194830688 is about 579.7211184040.

The spelling of 194830688 in words is "one hundred ninety-four million, eight hundred thirty thousand, six hundred eighty-eight".