199723368 has 32 divisors (see below), whose sum is σ = 537717600. Its totient is φ = 61453248.

The previous prime is 199723339. The next prime is 199723397. The reversal of 199723368 is 863327991.

It is an interprime number because it is at equal distance from previous prime (199723339) and next prime (199723397).

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, 319758 + ... + 320381.

It is an arithmetic number, because the mean of its divisors is an integer number (16803675).

Almost surely, 2^199723368 is an apocalyptic number.

It is an amenable number.

199723368 is an abundant number, since it is smaller than the sum of its proper divisors (337994232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199723368 is a wasteful number, since it uses less digits than its factorization.

199723368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640161 (or 640157 counting only the distinct ones).

The product of its digits is 489888, while the sum is 48.

The square root of 199723368 is about 14132.3518212646. The cubic root of 199723368 is about 584.5337976102.

The spelling of 199723368 in words is "one hundred ninety-nine million, seven hundred twenty-three thousand, three hundred sixty-eight".