198266464 has 48 divisors (see below), whose sum is σ = 435758400. Its totient is φ = 88018560.

The previous prime is 198266459. The next prime is 198266479. The reversal of 198266464 is 464662891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8587 + ... + 21685.

It is an arithmetic number, because the mean of its divisors is an integer number (9078300).

Almost surely, 2^198266464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198266464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217879200).

198266464 is an abundant number, since it is smaller than the sum of its proper divisors (237491936).

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

198266464 is a wasteful number, since it uses less digits than its factorization.

198266464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13163 (or 13155 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 198266464 is about 14080.7124819733. The cubic root of 198266464 is about 583.1090122698.

It can be divided in two parts, 198 and 266464, that added together give a palindrome (266662).

The spelling of 198266464 in words is "one hundred ninety-eight million, two hundred sixty-six thousand, four hundred sixty-four".