199907560 has 16 divisors (see below), whose sum is σ = 449792100. Its totient is φ = 79963008.

The previous prime is 199907551. The next prime is 199907599. The reversal of 199907560 is 65709991.

It can be written as a sum of positive squares in 2 ways, for example, as 189833284 + 10074276 = 13778^2 + 3174^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 199907560.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2498805 + ... + 2498884.

Almost surely, 2^199907560 is an apocalyptic number.

199907560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199907560 is an abundant number, since it is smaller than the sum of its proper divisors (249884540).

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

199907560 is a wasteful number, since it uses less digits than its factorization.

199907560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4997700 (or 4997696 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 199907560 is about 14138.8669984550. The cubic root of 199907560 is about 584.7134350246.

The spelling of 199907560 in words is "one hundred ninety-nine million, nine hundred seven thousand, five hundred sixty".