194494378 has 16 divisors (see below), whose sum is σ = 315445536. Its totient is φ = 89406000.

The previous prime is 194494373. The next prime is 194494381. The reversal of 194494378 is 873494491.

It is not an unprimeable number, because it can be changed into a prime (194494373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8376 + ... + 21427.

It is an arithmetic number, because the mean of its divisors is an integer number (19715346).

Almost surely, 2^194494378 is an apocalyptic number.

194494378 is a deficient number, since it is larger than the sum of its proper divisors (120951158).

194494378 is a wasteful number, since it uses less digits than its factorization.

194494378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30069.

The product of its digits is 870912, while the sum is 49.

The square root of 194494378 is about 13946.1241210596. The cubic root of 194494378 is about 579.3873614375.

The spelling of 194494378 in words is "one hundred ninety-four million, four hundred ninety-four thousand, three hundred seventy-eight".