243448194 has 64 divisors (see below), whose sum is σ = 571784832. Its totient is φ = 68275200.

The previous prime is 243448181. The next prime is 243448223. The reversal of 243448194 is 491844342.

243448194 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66664 + ... + 70220.

It is an arithmetic number, because the mean of its divisors is an integer number (8934138).

Almost surely, 2^243448194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243448194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285892416).

243448194 is an abundant number, since it is smaller than the sum of its proper divisors (328336638).

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

243448194 is a wasteful number, since it uses less digits than its factorization.

243448194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651.

The product of its digits is 110592, while the sum is 39.

The square root of 243448194 is about 15602.8264747128. The cubic root of 243448194 is about 624.4085660526.

The spelling of 243448194 in words is "two hundred forty-three million, four hundred forty-eight thousand, one hundred ninety-four".