199507952 has 20 divisors (see below), whose sum is σ = 441767856. Its totient is φ = 85503360.

The previous prime is 199507883. The next prime is 199507963. The reversal of 199507952 is 259705991.

It is a super-2 number, since 2×199507952² = 79606845822468608, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 199507897 and 199507906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890549 + ... + 890772.

Almost surely, 2^199507952 is an apocalyptic number.

It is an amenable number.

199507952 is an abundant number, since it is smaller than the sum of its proper divisors (242259904).

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

199507952 is a wasteful number, since it uses less digits than its factorization.

199507952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781336 (or 1781330 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 47.

The square root of 199507952 is about 14124.7283867691. The cubic root of 199507952 is about 584.3235681121.

The spelling of 199507952 in words is "one hundred ninety-nine million, five hundred seven thousand, nine hundred fifty-two".