199244007 has 24 divisors (see below), whose sum is σ = 298412400. Its totient is φ = 127951488.

The previous prime is 199243999. The next prime is 199244021. The reversal of 199244007 is 700442991.

It is not a de Polignac number, because 199244007 - 2³ = 199243999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199244107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192363 + ... + 193395.

It is an arithmetic number, because the mean of its divisors is an integer number (12433850).

Almost surely, 2^199244007 is an apocalyptic number.

199244007 is a deficient number, since it is larger than the sum of its proper divisors (99168393).

199244007 is a wasteful number, since it uses less digits than its factorization.

199244007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807 (or 1804 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 199244007 is about 14115.3819289455. The cubic root of 199244007 is about 584.0657716237.

Adding to 199244007 its reverse (700442991), we get a palindrome (899686998).

The spelling of 199244007 in words is "one hundred ninety-nine million, two hundred forty-four thousand, seven".