243098664 has 64 divisors (see below), whose sum is σ = 631031040. Its totient is φ = 77986560.

The previous prime is 243098663. The next prime is 243098671. The reversal of 243098664 is 466890342.

It is a happy number.

243098664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (243098663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67042 + ... + 70574.

It is an arithmetic number, because the mean of its divisors is an integer number (9859860).

Almost surely, 2^243098664 is an apocalyptic number.

243098664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243098664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315515520).

243098664 is an abundant number, since it is smaller than the sum of its proper divisors (387932376).

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

243098664 is a wasteful number, since it uses less digits than its factorization.

243098664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3650 (or 3646 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 243098664 is about 15591.6215962292. The cubic root of 243098664 is about 624.1095920269.

The spelling of 243098664 in words is "two hundred forty-three million, ninety-eight thousand, six hundred sixty-four".