194492308 has 12 divisors (see below), whose sum is σ = 360382932. Its totient is φ = 91525760.

The previous prime is 194492293. The next prime is 194492371. The reversal of 194492308 is 803294491.

It can be written as a sum of positive squares in 2 ways, for example, as 55771024 + 138721284 = 7468^2 + 11778^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1430023 + ... + 1430158.

It is an arithmetic number, because the mean of its divisors is an integer number (30031911).

Almost surely, 2^194492308 is an apocalyptic number.

It is an amenable number.

194492308 is a deficient number, since it is larger than the sum of its proper divisors (165890624).

194492308 is a wasteful number, since it uses less digits than its factorization.

194492308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860202 (or 2860200 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 194492308 is about 13946.0499066940. The cubic root of 194492308 is about 579.3853059606.

The spelling of 194492308 in words is "one hundred ninety-four million, four hundred ninety-two thousand, three hundred eight".