199986430 has 32 divisors (see below), whose sum is σ = 412205760. Its totient is φ = 68432640.

The previous prime is 199986337. The next prime is 199986431. The reversal of 199986430 is 34689991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199986431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37320 + ... + 42340.

It is an arithmetic number, because the mean of its divisors is an integer number (12881430).

Almost surely, 2^199986430 is an apocalyptic number.

199986430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199986430 is an abundant number, since it is smaller than the sum of its proper divisors (212219330).

199986430 is a wasteful number, since it uses less digits than its factorization.

199986430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5604.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 199986430 is about 14141.6558436415. The cubic root of 199986430 is about 584.7903210365.

The spelling of 199986430 in words is "one hundred ninety-nine million, nine hundred eighty-six thousand, four hundred thirty".