199946345 has 8 divisors (see below), whose sum is σ = 245515776. Its totient is φ = 156236976.

The previous prime is 199946323. The next prime is 199946347. The reversal of 199946345 is 543649991.

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

It is a cyclic number.

It is not a de Polignac number, because 199946345 - 2¹⁶ = 199880809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199946293 and 199946302.

It is not an unprimeable number, because it can be changed into a prime (199946347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464777 + ... + 465206.

It is an arithmetic number, because the mean of its divisors is an integer number (30689472).

Almost surely, 2^199946345 is an apocalyptic number.

It is an amenable number.

199946345 is a deficient number, since it is larger than the sum of its proper divisors (45569431).

199946345 is an equidigital number, since it uses as much as digits as its factorization.

199946345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930031.

The product of its digits is 1049760, while the sum is 50.

The square root of 199946345 is about 14140.2385057679. The cubic root of 199946345 is about 584.7512469081.

The spelling of 199946345 in words is "one hundred ninety-nine million, nine hundred forty-six thousand, three hundred forty-five".