199975044 has 12 divisors (see below), whose sum is σ = 466608464. Its totient is φ = 66658344.

The previous prime is 199975043. The next prime is 199975067. The reversal of 199975044 is 440579991.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 199974984 and 199975002.

It is not an unprimeable number, because it can be changed into a prime (199975043) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 8332282 + ... + 8332305.

Almost surely, 2^199975044 is an apocalyptic number.

It is an amenable number.

199975044 is an abundant number, since it is smaller than the sum of its proper divisors (266633420).

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

199975044 is a wasteful number, since it uses less digits than its factorization.

199975044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16664594 (or 16664592 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 199975044 is about 14141.2532683635. The cubic root of 199975044 is about 584.7792227019.

The spelling of 199975044 in words is "one hundred ninety-nine million, nine hundred seventy-five thousand, forty-four".