194442985 has 8 divisors (see below), whose sum is σ = 254543616. Its totient is φ = 141413040.

The previous prime is 194442977. The next prime is 194443009. The reversal of 194442985 is 589244491.

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

It is not a de Polignac number, because 194442985 - 2³ = 194442977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1767609 + ... + 1767718.

It is an arithmetic number, because the mean of its divisors is an integer number (31817952).

Almost surely, 2^194442985 is an apocalyptic number.

It is an amenable number.

194442985 is a deficient number, since it is larger than the sum of its proper divisors (60100631).

194442985 is a wasteful number, since it uses less digits than its factorization.

194442985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535343.

The product of its digits is 414720, while the sum is 46.

The square root of 194442985 is about 13944.2814443771. The cubic root of 194442985 is about 579.3363246962.

The spelling of 194442985 in words is "one hundred ninety-four million, four hundred forty-two thousand, nine hundred eighty-five".