198240868 has 36 divisors (see below), whose sum is σ = 417489660. Its totient is φ = 82028352.

The previous prime is 198240817. The next prime is 198240869. The reversal of 198240868 is 868042891.

198240868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 129549924 + 68690944 = 11382^2 + 8288^2 .

It is not an unprimeable number, because it can be changed into a prime (198240869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11755 + ... + 23122.

It is an arithmetic number, because the mean of its divisors is an integer number (11596935).

Almost surely, 2^198240868 is an apocalyptic number.

It is an amenable number.

198240868 is an abundant number, since it is smaller than the sum of its proper divisors (219248792).

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

198240868 is a wasteful number, since it uses less digits than its factorization.

198240868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34924 (or 34915 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 198240868 is about 14079.8035497659. The cubic root of 198240868 is about 583.0839182620.

The spelling of 198240868 in words is "one hundred ninety-eight million, two hundred forty thousand, eight hundred sixty-eight".