199960434 has 16 divisors (see below), whose sum is σ = 444356640. Its totient is φ = 66653460.

The previous prime is 199960433. The next prime is 199960471. The reversal of 199960434 is 434069991.

199960434 is a `hidden beast` number, since 1 + 9 + 9 + 9 + 604 + 34 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 199960434.

It is not an unprimeable number, because it can be changed into a prime (199960433) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1851432 + ... + 1851539.

It is an arithmetic number, because the mean of its divisors is an integer number (27772290).

Almost surely, 2^199960434 is an apocalyptic number.

199960434 is an abundant number, since it is smaller than the sum of its proper divisors (244396206).

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

199960434 is a wasteful number, since it uses less digits than its factorization.

199960434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702982 (or 3702976 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 199960434 is about 14140.7366851943. The cubic root of 199960434 is about 584.7649812040.

The spelling of 199960434 in words is "one hundred ninety-nine million, nine hundred sixty thousand, four hundred thirty-four".