194928768 has 112 divisors (see below), whose sum is σ = 582514350. Its totient is φ = 64945152.

The previous prime is 194928757. The next prime is 194928781. The reversal of 194928768 is 867829491.

194928768 is a `hidden beast` number, since 19 + 492 + 87 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 131056704 + 63872064 = 11448^2 + 7992^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 92268 + ... + 94356.

Almost surely, 2^194928768 is an apocalyptic number.

194928768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194928768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291257175).

194928768 is an abundant number, since it is smaller than the sum of its proper divisors (387585582).

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

194928768 is an frugal number, since it uses more digits than its factorization.

194928768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121 (or 2094 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 194928768 is about 13961.6892960702. The cubic root of 194928768 is about 579.8183815018.

The spelling of 194928768 in words is "one hundred ninety-four million, nine hundred twenty-eight thousand, seven hundred sixty-eight".