198340430 has 16 divisors (see below), whose sum is σ = 375803280. Its totient is φ = 75160512.

The previous prime is 198340421. The next prime is 198340453. The reversal of 198340430 is 34043891.

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 7 ways as a sum of consecutive naturals, for example, 521759 + ... + 522138.

It is an arithmetic number, because the mean of its divisors is an integer number (23487705).

Almost surely, 2^198340430 is an apocalyptic number.

198340430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198340430 is a deficient number, since it is larger than the sum of its proper divisors (177462850).

198340430 is a wasteful number, since it uses less digits than its factorization.

198340430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043923.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 198340430 is about 14083.3387376715. The cubic root of 198340430 is about 583.1815155028.

The spelling of 198340430 in words is "one hundred ninety-eight million, three hundred forty thousand, four hundred thirty".