194388768 has 96 divisors (see below), whose sum is σ = 647982720. Its totient is φ = 55537920.

The previous prime is 194388737. The next prime is 194388773. The reversal of 194388768 is 867883491.

194388768 is a `hidden beast` number, since 194 + 388 + 76 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a nude number because it is divisible by every one of its digits.

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 15 ways as a sum of consecutive naturals, for example, 10023 + ... + 22118.

It is an arithmetic number, because the mean of its divisors is an integer number (6749820).

Almost surely, 2^194388768 is an apocalyptic number.

194388768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

194388768 is an abundant number, since it is smaller than the sum of its proper divisors (453593952).

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

194388768 is a wasteful number, since it uses less digits than its factorization.

194388768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32167 (or 32153 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 194388768 is about 13942.3372502604. The cubic root of 194388768 is about 579.2824737823.

The spelling of 194388768 in words is "one hundred ninety-four million, three hundred eighty-eight thousand, seven hundred sixty-eight".