194449933 has 4 divisors (see below), whose sum is σ = 204684160. Its totient is φ = 184215708.

The previous prime is 194449907. The next prime is 194449943. The reversal of 194449933 is 339944491.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194449933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194449903) 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, 5117085 + ... + 5117122.

It is an arithmetic number, because the mean of its divisors is an integer number (51171040).

Almost surely, 2^194449933 is an apocalyptic number.

It is an amenable number.

194449933 is a deficient number, since it is larger than the sum of its proper divisors (10234227).

194449933 is a wasteful number, since it uses less digits than its factorization.

194449933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10234226.

The product of its digits is 419904, while the sum is 46.

The square root of 194449933 is about 13944.5305765379. The cubic root of 194449933 is about 579.3432250580.

The spelling of 194449933 in words is "one hundred ninety-four million, four hundred forty-nine thousand, nine hundred thirty-three".