199342738 has 16 divisors (see below), whose sum is σ = 350066304. Its totient is φ = 83348640.

The previous prime is 199342727. The next prime is 199342739. The reversal of 199342738 is 837243991.

It is not an unprimeable number, because it can be changed into a prime (199342739) 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, 173070 + ... + 174217.

It is an arithmetic number, because the mean of its divisors is an integer number (21879144).

Almost surely, 2^199342738 is an apocalyptic number.

199342738 is a deficient number, since it is larger than the sum of its proper divisors (150723566).

199342738 is a wasteful number, since it uses less digits than its factorization.

199342738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347337.

The product of its digits is 326592, while the sum is 46.

The square root of 199342738 is about 14118.8787798465. The cubic root of 199342738 is about 584.1622293562.

The spelling of 199342738 in words is "one hundred ninety-nine million, three hundred forty-two thousand, seven hundred thirty-eight".