199466443 has 6 divisors (see below), whose sum is σ = 219248372. Its totient is φ = 181333020.

The previous prime is 199466429. The next prime is 199466461. The reversal of 199466443 is 344664991.

It is a de Polignac number, because none of the positive numbers 2^k-199466443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199466393 and 199466402.

It is not an unprimeable number, because it can be changed into a prime (199466483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 824121 + ... + 824362.

Almost surely, 2^199466443 is an apocalyptic number.

199466443 is a deficient number, since it is larger than the sum of its proper divisors (19781929).

199466443 is a wasteful number, since it uses less digits than its factorization.

199466443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648505 (or 1648494 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The square root of 199466443 is about 14123.2589369451. The cubic root of 199466443 is about 584.2830411239.

The spelling of 199466443 in words is "one hundred ninety-nine million, four hundred sixty-six thousand, four hundred forty-three".