243340576 has 72 divisors (see below), whose sum is σ = 509730732. Its totient is φ = 114278400.

The previous prime is 243340553. The next prime is 243340597. The reversal of 243340576 is 675043342.

It can be written as a sum of positive squares in 2 ways, for example, as 203347600 + 39992976 = 14260^2 + 6324^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1260736 + ... + 1260928.

Almost surely, 2^243340576 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 243340576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254865366).

243340576 is an abundant number, since it is smaller than the sum of its proper divisors (266390156).

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

243340576 is a wasteful number, since it uses less digits than its factorization.

243340576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 243340576 is about 15599.3774234743. The cubic root of 243340576 is about 624.3165444140.

The spelling of 243340576 in words is "two hundred forty-three million, three hundred forty thousand, five hundred seventy-six".