199856452 has 6 divisors (see below), whose sum is σ = 349748798. Its totient is φ = 99928224.

The previous prime is 199856431. The next prime is 199856467. The reversal of 199856452 is 254658991.

It can be written as a sum of positive squares in only one way, i.e., 185613376 + 14243076 = 13624^2 + 3774^2 .

It is a junction number, because it is equal to n+sod(n) for n = 199856396 and 199856405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24982053 + ... + 24982060.

Almost surely, 2^199856452 is an apocalyptic number.

It is an amenable number.

199856452 is a deficient number, since it is larger than the sum of its proper divisors (149892346).

199856452 is a wasteful number, since it uses less digits than its factorization.

199856452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49964117 (or 49964115 counting only the distinct ones).

The product of its digits is 777600, while the sum is 49.

The square root of 199856452 is about 14137.0595245263. The cubic root of 199856452 is about 584.6636018562.

The spelling of 199856452 in words is "one hundred ninety-nine million, eight hundred fifty-six thousand, four hundred fifty-two".