194145984 has 140 divisors (see below), whose sum is σ = 609639624. Its totient is φ = 60880896.

The previous prime is 194145979. The next prime is 194146019. The reversal of 194145984 is 489541491.

It is a happy number.

194145984 is a `hidden beast` number, since 19 + 41 + 4 + 598 + 4 = 666.

194145984 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 87027 + ... + 89229.

Almost surely, 2^194145984 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 194145984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304819812).

194145984 is an abundant number, since it is smaller than the sum of its proper divisors (415493640).

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

194145984 is a wasteful number, since it uses less digits than its factorization.

194145984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244 (or 2225 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 194145984 is about 13933.6278118801. The cubic root of 194145984 is about 579.0412062273.

The spelling of 194145984 in words is "one hundred ninety-four million, one hundred forty-five thousand, nine hundred eighty-four".