199434630 has 32 divisors (see below), whose sum is σ = 488830464. Its totient is φ = 52050656.

The previous prime is 199434623. The next prime is 199434647. The reversal of 199434630 is 36434991.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69312 + ... + 72131.

It is an arithmetic number, because the mean of its divisors is an integer number (15275952).

Almost surely, 2^199434630 is an apocalyptic number.

199434630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199434630 is an abundant number, since it is smaller than the sum of its proper divisors (289395834).

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

199434630 is a wasteful number, since it uses less digits than its factorization.

199434630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141500.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 199434630 is about 14122.1326293163. The cubic root of 199434630 is about 584.2519769435.

The spelling of 199434630 in words is "one hundred ninety-nine million, four hundred thirty-four thousand, six hundred thirty".