194315388 has 12 divisors (see below), whose sum is σ = 453402600. Its totient is φ = 64771792.

The previous prime is 194315351. The next prime is 194315411. The reversal of 194315388 is 883513491.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8096463 + ... + 8096486.

It is an arithmetic number, because the mean of its divisors is an integer number (37783550).

Almost surely, 2^194315388 is an apocalyptic number.

It is an amenable number.

194315388 is an abundant number, since it is smaller than the sum of its proper divisors (259087212).

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

194315388 is a wasteful number, since it uses less digits than its factorization.

194315388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16192956 (or 16192954 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 194315388 is about 13939.7054488249. The cubic root of 194315388 is about 579.2095733120.

The spelling of 194315388 in words is "one hundred ninety-four million, three hundred fifteen thousand, three hundred eighty-eight".