243413280 has 288 divisors, whose sum is σ = 920844288. Its totient is φ = 58544640.

The previous prime is 243413273. The next prime is 243413321. The reversal of 243413280 is 82314342.

243413280 is a `hidden beast` number, since 243 + 413 + 2 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1916577 + ... + 1916703.

It is an arithmetic number, because the mean of its divisors is an integer number (3197376).

Almost surely, 2^243413280 is an apocalyptic number.

243413280 is a gapful number since it is divisible by the number (20) 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 243413280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460422144).

243413280 is an abundant number, since it is smaller than the sum of its proper divisors (677431008).

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

243413280 is a wasteful number, since it uses less digits than its factorization.

243413280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 243413280 is about 15601.7075988496. The cubic root of 243413280 is about 624.3787148790.

The spelling of 243413280 in words is "two hundred forty-three million, four hundred thirteen thousand, two hundred eighty".