198733242 has 16 divisors (see below), whose sum is σ = 403983072. Its totient is φ = 65158320.

The previous prime is 198733211. The next prime is 198733261. The reversal of 198733242 is 242337891.

It is a self number, because there is not a number n which added to its sum of digits gives 198733242.

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, 271128 + ... + 271859.

It is an arithmetic number, because the mean of its divisors is an integer number (25248942).

Almost surely, 2^198733242 is an apocalyptic number.

198733242 is an abundant number, since it is smaller than the sum of its proper divisors (205249830).

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

198733242 is a wasteful number, since it uses less digits than its factorization.

198733242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543053.

The product of its digits is 72576, while the sum is 39.

The square root of 198733242 is about 14097.2778223315. The cubic root of 198733242 is about 583.5662574213.

The spelling of 198733242 in words is "one hundred ninety-eight million, seven hundred thirty-three thousand, two hundred forty-two".