198447366 has 32 divisors (see below), whose sum is σ = 428279040. Its totient is φ = 60938784.

The previous prime is 198447349. The next prime is 198447373. The reversal of 198447366 is 663744891.

198447366 = T₁₇₈₃ + T₁₇₈₄ + ... + T₁₈₉₉.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41655 + ... + 46173.

It is an arithmetic number, because the mean of its divisors is an integer number (13383720).

Almost surely, 2^198447366 is an apocalyptic number.

198447366 is an abundant number, since it is smaller than the sum of its proper divisors (229831674).

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

198447366 is a wasteful number, since it uses less digits than its factorization.

198447366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100.

The product of its digits is 870912, while the sum is 48.

The square root of 198447366 is about 14087.1347690011. The cubic root of 198447366 is about 583.2863048526.

The spelling of 198447366 in words is "one hundred ninety-eight million, four hundred forty-seven thousand, three hundred sixty-six".