194396128 has 24 divisors (see below), whose sum is σ = 385295400. Its totient is φ = 96543360.

The previous prime is 194396119. The next prime is 194396131. The reversal of 194396128 is 821693491.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15618 + ... + 25153.

It is an arithmetic number, because the mean of its divisors is an integer number (16053975).

Almost surely, 2^194396128 is an apocalyptic number.

It is an amenable number.

194396128 is a deficient number, since it is larger than the sum of its proper divisors (190899272).

194396128 is a wasteful number, since it uses less digits than its factorization.

194396128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40930 (or 40922 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 194396128 is about 13942.6011920301. The cubic root of 194396128 is about 579.2897846731.

The spelling of 194396128 in words is "one hundred ninety-four million, three hundred ninety-six thousand, one hundred twenty-eight".