199754434 has 16 divisors (see below), whose sum is σ = 327118176. Its totient is φ = 90728800.

The previous prime is 199754431. The next prime is 199754441. The reversal of 199754434 is 434457991.

It is not an unprimeable number, because it can be changed into a prime (199754431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36774 + ... + 41854.

It is an arithmetic number, because the mean of its divisors is an integer number (20444886).

Almost surely, 2^199754434 is an apocalyptic number.

199754434 is a deficient number, since it is larger than the sum of its proper divisors (127363742).

199754434 is a wasteful number, since it uses less digits than its factorization.

199754434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6881.

The product of its digits is 544320, while the sum is 46.

The square root of 199754434 is about 14133.4508878759. The cubic root of 199754434 is about 584.5641031701.

The spelling of 199754434 in words is "one hundred ninety-nine million, seven hundred fifty-four thousand, four hundred thirty-four".