194225568 has 24 divisors (see below), whose sum is σ = 509842368. Its totient is φ = 64741824.

The previous prime is 194225567. The next prime is 194225597. The reversal of 194225568 is 865522491.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (194225567) 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 3 ways as a sum of consecutive naturals, for example, 1011496 + ... + 1011687.

It is an arithmetic number, because the mean of its divisors is an integer number (21243432).

Almost surely, 2^194225568 is an apocalyptic number.

It is an amenable number.

194225568 is an abundant number, since it is smaller than the sum of its proper divisors (315616800).

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

194225568 is a wasteful number, since it uses less digits than its factorization.

194225568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023196 (or 2023188 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 194225568 is about 13936.4833440865. The cubic root of 194225568 is about 579.1203152894.

The spelling of 194225568 in words is "one hundred ninety-four million, two hundred twenty-five thousand, five hundred sixty-eight".