194450439 has 8 divisors (see below), whose sum is σ = 259348480. Its totient is φ = 129593016.

The previous prime is 194450419. The next prime is 194450447. The reversal of 194450439 is 934054491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 194450439 - 2⁵ = 194450407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194450397 and 194450406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194450419) 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 7 ways as a sum of consecutive naturals, for example, 3732 + ... + 20070.

It is an arithmetic number, because the mean of its divisors is an integer number (32418560).

Almost surely, 2^194450439 is an apocalyptic number.

194450439 is a deficient number, since it is larger than the sum of its proper divisors (64898041).

194450439 is a wasteful number, since it uses less digits than its factorization.

194450439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20309.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 194450439 is about 13944.5487198403. The cubic root of 194450439 is about 579.3437275822.

The spelling of 194450439 in words is "one hundred ninety-four million, four hundred fifty thousand, four hundred thirty-nine".