199999952 has 20 divisors (see below), whose sum is σ = 394812900. Its totient is φ = 98112768.

The previous prime is 199999949. The next prime is 199999957. The reversal of 199999952 is 259999991.

It can be written as a sum of positive squares in 2 ways, for example, as 84566416 + 115433536 = 9196^2 + 10744^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199999957) 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, 117077 + ... + 118772.

It is an arithmetic number, because the mean of its divisors is an integer number (19740645).

Almost surely, 2^199999952 is an apocalyptic number.

It is an amenable number.

199999952 is a deficient number, since it is larger than the sum of its proper divisors (194812948).

199999952 is a wasteful number, since it uses less digits than its factorization.

199999952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235910 (or 235904 counting only the distinct ones).

The product of its digits is 5314410, while the sum is 62.

The square root of 199999952 is about 14142.1339266746. The cubic root of 199999952 is about 584.8035008583.

The spelling of 199999952 in words is "one hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred fifty-two".