198429982 has 4 divisors (see below), whose sum is σ = 297644976. Its totient is φ = 99214990.

The previous prime is 198429943. The next prime is 198429983. The reversal of 198429982 is 289924891.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198429983) 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 as a sum of consecutive naturals, namely, 49607494 + ... + 49607497.

It is an arithmetic number, because the mean of its divisors is an integer number (74411244).

Almost surely, 2^198429982 is an apocalyptic number.

198429982 is a deficient number, since it is larger than the sum of its proper divisors (99214994).

198429982 is an equidigital number, since it uses as much as digits as its factorization.

198429982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99214993.

The product of its digits is 746496, while the sum is 52.

The square root of 198429982 is about 14086.5177386038. The cubic root of 198429982 is about 583.2692723847.

The spelling of 198429982 in words is "one hundred ninety-eight million, four hundred twenty-nine thousand, nine hundred eighty-two".