199953768 has 32 divisors (see below), whose sum is σ = 571296960. Its totient is φ = 57129600.

The previous prime is 199953727. The next prime is 199953769. The reversal of 199953768 is 867359991.

It is not an unprimeable number, because it can be changed into a prime (199953769) 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, 594933 + ... + 595268.

It is an arithmetic number, because the mean of its divisors is an integer number (17853030).

Almost surely, 2^199953768 is an apocalyptic number.

It is an amenable number.

199953768 is an abundant number, since it is smaller than the sum of its proper divisors (371343192).

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

199953768 is a wasteful number, since it uses less digits than its factorization.

199953768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190217 (or 1190213 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 57.

The square root of 199953768 is about 14140.5009812241. The cubic root of 199953768 is about 584.7584831073.

The spelling of 199953768 in words is "one hundred ninety-nine million, nine hundred fifty-three thousand, seven hundred sixty-eight".