243340344 has 96 divisors (see below), whose sum is σ = 712530000. Its totient is φ = 74580480.

The previous prime is 243340337. The next prime is 243340381. The reversal of 243340344 is 443043342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466804 + ... + 467324.

Almost surely, 2^243340344 is an apocalyptic number.

243340344 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 243340344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356265000).

243340344 is an abundant number, since it is smaller than the sum of its proper divisors (469189656).

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

243340344 is a wasteful number, since it uses less digits than its factorization.

243340344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

The square root of 243340344 is about 15599.3699872783. The cubic root of 243340344 is about 624.3163460069.

Adding to 243340344 its reverse (443043342), we get a palindrome (686383686).

The spelling of 243340344 in words is "two hundred forty-three million, three hundred forty thousand, three hundred forty-four".