199811048 has 16 divisors (see below), whose sum is σ = 376042500. Its totient is φ = 99533056.

The previous prime is 199811041. The next prime is 199811071. The reversal of 199811048 is 840118991.

It can be written as a sum of positive squares in 2 ways, for example, as 174187204 + 25623844 = 13198^2 + 5062^2 .

It is a junction number, because it is equal to n+sod(n) for n = 199810996 and 199811014.

It is not an unprimeable number, because it can be changed into a prime (199811041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44273 + ... + 48576.

Almost surely, 2^199811048 is an apocalyptic number.

It is an amenable number.

199811048 is a deficient number, since it is larger than the sum of its proper divisors (176231452).

199811048 is a wasteful number, since it uses less digits than its factorization.

199811048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93124 (or 93120 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 41.

The square root of 199811048 is about 14135.4535831009. The cubic root of 199811048 is about 584.6193232812.

The spelling of 199811048 in words is "one hundred ninety-nine million, eight hundred eleven thousand, forty-eight".